NEET 2020 Online Mock test

Vishal Kumar 09/01/2021

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NEET 2020 Question Papers E1 Online Mock test With Answers

Introduction :

The National Eligibility cum Entrance Test (NEET) is an all-India medical entrance examination held in India. The exam is conducted by the National Testing Agency (NTA) every year to offer admissions to students in undergraduate medical programs like MBBS, BDS etc. Qualifying the NEET exam has been made obligatory by the Government of India to pursue medical studies in India and abroad.

It is the only medical entrance examination held on an all-India basis and hence attracts a multitude of students. The vast and varied syllabus of the exam coupled with the high level of competition makes NEET one of the toughest entrance exams in the country.

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Take NEET Mock Test here online for free. Mock Test of NEET is an important part of exam preparation. NEET Mock Test by TayariOnline is based on exam syllabus and level of exam. Practice physics, chemistry, zoology, botany of NEET level with online mock test. National Eligibility cum Entrance Test is conducted by National Testing Agency (NTA) for admission to MBBS and BDS.

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NEET & JEE

NEET 2020 Code E1 Online Mock test

The National Eligibility cum Entrance Test (NEET) is an all-India medical entrance examination held in India. The exam is conducted by the National Testing Agency (NTA) every year to offer admissions to students in undergraduate medical programs.

Take NEET Mock Test here online for free. Mock Test of NEET is an important part of exam preparation. NEET Mock Test by TayariOnline is based on exam syllabus and level of exam. Practice physics, chemistry, zoology, botany of NEET level with online mock test.

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Category: NEET & JEE

The enzyme enterokinase helps in conversion
of

trypsinogen into trypsin

caseinogen into casein

pepsinogen into pepsin

protein into polypeptides

2 / 158

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Identify a molecule which does not exist.

He2

Li2

3 / 158

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Select the option including all sexually
transmitted diseases.

Gonorrhoea, Malaria, Genital herpes

Cancer, AIDS, Syphilis

Gonorrhoea, Syphilis, Genital herpes

AIDS, Malaria, Filaria

4 / 158

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Urea reacts with water to form A which will
decompose to form B. B when passed through
Cu2+ (aq), deep blue colour solution C is
formed. What is the formula of C from the
following ?

5 / 158

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Which one of the following is the most
abundant protein in the animals?

Insulin

Haemoglobin

Lectin

Collagen

6 / 158

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Which of the following statements are true for
the phylum-Chordata?

(a) In Urochordata notochord extends from
head to tail and it is present throughout
their life.

(b) In Vertebrata notochord is present during
the embryonic period only.

(d) Chordata is divided into 3 subphyla :
Hemichordata, Tunicata and
Cephalochordata.

(a) and (b)

(d) and (c)

(b) and (c)

7 / 158

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A mixture of N2 and Ar gases in a cylinder
contains 7 g of N2 and 8 g of Ar. If the total
pressure of the mixture of the gases in the
cylinder is 27 bar, the partial pressure of N2
is :[Use atomic masses (in g mol–1) : N = 14,
Ar = 40]

12 bar

18 bar

15 bar

9 bar

8 / 158

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Which of the following is a cationic
detergent?

Cetyltrimethyl ammonium bromide

Sodium lauryl sulphate

Sodium dodecylbenzene sulphonate

Sodium stearate

9 / 158

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For which one of the following, Bohr model is
not valid ?

Singly ionised helium atom (He+ )

Deuteron atom

Singly ionised neon atom (Ne+ )

Hydrogen atom

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Montreal protocol was signed in 1987 for
control of

Release of Green House gases

Disposal of e-wastes

Emission of ozone depleting substances

Transport of Genetically modified organisms from one country to another

12 / 158

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Identify the correct statement with reference
to human digestive system.

IIeum opens into small intestine

Serosa is the innermost layer of the alimentary canal

IIeum is a highly coiled part

Vermiform appendix arises from duodenum

13 / 158

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In a guitar, two strings A and B made of same
material are slightly out of tune and produce
beats of frequency 6 Hz. When tension in B is
slightly decreased, the beat frequency
increases to 7 Hz. If the frequency of A is
530 Hz, the original frequency of B will be:

537 Hz

523 Hz

524 Hz

536 Hz

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The average thermal energy for a mono-atomic gas is : (kB
is Boltzmann constant and T,
absolute temperature)

15 / 158

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A body weighs 72 N on the surface of the
earth. What is the gravitational force on it, at a
height equal to half the radius of the earth?

30 N

32 N

24 N

48 N

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Flippers of Penguins and Dolphins are
examples of

Industrial melanism

Natural selection

Adaptive radiation

Convergent evolution

17 / 158

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A 40 μF capacitor is connected to a 200 V,
50 Hz ac supply. The rms value of the current
in the circuit is, nearly :

2.5 A

1.7 A

25.1 A

2.05 A

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By which method was a new breed ‘Hisardale’
of sheep formed by using Bikaneri ewes and
Marino rams?

Inbreeding

Mutational breeding

Out crossing

Cross breeding

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Strobili or cones are found in

Equisetum

Pteris

Salvinia

Marchantia

21 / 158

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The first phase of translation is

Binding of mRNA to ribosome

Recognition of DNA molecule

Recognition of an anti-codon

Aminoacylation of tRNA

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Select the correct statement

Glucocorticoids stimulate gluconeogenesis.

Insulin is associated with hyperglycemia.

Insulin acts on pancreatic cells and adipocytes.

Glucagon is associated with hypoglycemia.

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Ray florets have

Inferior ovary

Superior ovary

Half inferior ovary

Hypogynous ovary

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The QRS complex in a standard ECG
represents

Repolarisation of ventricles

Depolarisation of auricles

Depolarisation of ventricles

Repolarisation of auricles

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The energy equivalent of 0.5 g of a substance
is :

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A tertiary butyl carbocation is more stable
than a secondary butyl carbocation because
of ?

– R effect of – CH3 groups

+ R effect of – CH3 groups

Hyperconjugation

– I effect of – CH3 groups

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Which of the following is not correct about
carbon monoxide ?

The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin.

It reduces oxygen carrying ability of blood.

It is produced due to incomplete combustion.

It forms carboxyhaemoglobin

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Reaction between acetone and
methylmagnesium chloride followed by
hydrolysis will give :

Isopropyl alcohol

Sec. butyl alcohol

Isobutyl alcohol

Tert. butyl alcohol

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Embryological support for evolution was
disapproved by

Alfred Wallace

Charles Darwin

Oparin

Karl Ernst von Baer

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400 V

zero

200 V

50 V

32 / 158

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Meiotic division of the secondary oocyte is
completed

At the time of fusion of a sperm with an ovum

After zygote formation

Prior to ovulation

At the time of copulation

33 / 158

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Bt cotton variety that was developed by the
introduction of toxin gene of Bacillus
thuringiensis (Bt) is resistant to

Insect predators

Insect pests

Plant nematodes

Fungal diseases

34 / 158

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Name the plant growth regulator which upon
spraying on sugarcane crop, increases the
length of stem, thus increasing the yield of
sugarcane crop.

Cytokinin

Gibberellin

Abscisic acid

Ethylene

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Identify the correct statements from the
following :
(a) CO2(g) is used as refrigerant for ice-cream
and frozen food.
(b) The structure of C60 contains twelve six
carbon rings and twenty five carbon rings.
(c) ZSM-5, a type of zeolite, is used to convert
alcohols into gasoline.
(d) CO is colorless and odourless gas.

(a), (b) and (c) only

(a) and (c) only

(b) and (c) only

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Which one of the followings has maximum
number of atoms ?

1 g of O2(g) [Atomic mass of O = 16]

1 g of Li(s) [Atomic mass of Li = 7]

1 g of Mg(s) [Atomic mass of Mg = 24]

1 g of Ag(s) [Atomic mass of Ag = 108]

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The mean free path for a gas, with molecular
diameter d and number density n can be
expressed as :

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A ball is thrown vertically downward with a
velocity of 20 m/s from the top of a tower. It hits
the ground after some time with a velocity of
80 m/s. The height of the tower is : (g = 10 m/s2)

340 m

320 m

300 m

360 m

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In gel electrophoresis, separated DNA
fragments can be visualized with the help of

Acetocarmine in bright blue light

Ethidium bromide in infrared radiation

Ethidium bromide in UV radiation

Acetocarmine in UV radiation

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The number of substrate level
phosphorylations in one turn of citric acid
cycle is

One

Zero

Three

Two

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Identify the wrong statement with reference
to immunity.

Active immunity is quick and gives full response.

When exposed to antigen (living or dead) antibodies are produced in the host’s body. It is called “Active immunity”.

Foetus receives some antibodies from mother, it is an example for passive immunity.

When ready-made antibodies are directly given, it is called “Passive immunity”.

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In which of the following techniques, the
embryos are transferred to assist those
females who cannot conceive?

ZIFT and IUT

GIFT and ICSI

ICSI and ZIFT

GIFT and ZIFT

44 / 158

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The number of Faradays(F) required to
produce 20 g of calcium from molten CaCl2
(Atomic mass of Ca = 40 g mol–1) is

45 / 158

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Presence of which of the following conditions
in urine are indicative of Diabetes Mellitus?

Uremia and Renal Calculi

Ketonuria and Glycosuria

Renal calculi and Hyperglycaemia

Uremia and Ketonuria

46 / 158

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Which of the following is a basic o
acid ?

Alanine

Tyrosine

Lysine

Serine

47 / 158

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Reaction between benzaldehyde and
acetophenone in presence of dilute NaOH is
known as

Cross Cannizzaro’s reaction

Cross Aldol condensation

Cannizzaro’s reaction

Aldol condensation

48 / 158

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Bilaterally symmetrical and acoelomate
animals are exemplified by

Platyhelminthes

Aschelminthes

Ctenophora

Annelida

49 / 158

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Which of the following is correct about
viroids?

They have free RNA without protein coat

They have RNA with protein coat

They have free DNA without protein coat

They have DNA with protein coat

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According to Robert May, the global species
diversity is about

20 million

50 million

1.5 million

7 million

51 / 158

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The capacitance of a parallel plate capacitor
with air as medium is 6 μF. With the
introduction of a dielectric medium, the
capacitance becomes 30 μF. The permittivity of
the medium is :

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The ratio of contributions made by the electric
field and magnetic field components to the
intensity of an electromagnetic wave is :
(c = speed of electromagnetic waves)

1 : c

c : 1

1 : 1

1 : C2

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Which of the following oxoacid of sulphur has
– O – O – linkage?

54 / 158

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Secondary metabolites such as nicotine,
strychnine and caffeine are produced by
plants for their

Defence action

Effect on reproduction

Growth response

Nutritive value

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Goblet cells of alimentary canal are modified
from

Columnar epithelial cells

Compound epithelial cells

Squamous epithelial cells

Chondrocytes

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The body of the ovule is fused within the
funicle at

Chalaza

Nucellus

Micropyle

Hilum

57 / 158

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58 / 158

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The oxygenation activity of RuBisCo enzyme
in photorespiration leads to the formation of

2 molecules of 3-C compound

1 molecule of 3-C compound

1 molecule of 6-C compound

1 molecule of 4-C compound and 1 molecule of 2-C compound

59 / 158

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The mixture which shows positive deviation
from Raoult’s law is

Acetone + Chloroform

Benzene + Toluene

Ethanol + Acetone

Chloroethane + Bromoethane

60 / 158

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On electrolysis of dil. sulphuric acid using
Platinum (Pt) electrode, the product obtained
at anode will be

Hydrogen gas

H2S gas

SO2 gas

Oxygen gas

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Which of the following would help in
prevention of diuresis?

Decrease in secretion of renin by JG cells

Reabsorption of Na+ and water from renal tubules due to aldosterone

Atrial natriuretic factor causes vasoconstriction

More water reabsorption due to undersecretion of ADH

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64 / 158

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Two particles of mass 5 kg and 10 kg
respectively are attached to the two ends of a
rigid rod of length 1 m with negligible mass.
The centre of mass of the system from the 5 kg
particle is nearly at a distance of :

67 cm

80 cm

50 cm

33 cm

65 / 158

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The following metal ion activates many
enzymes, participates in the oxidation of
glucose to produce ATP and with Na, is
responsible for the transmission of nerve
signals.

Potassium

Calcium

Iron

Copper

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Which of the following set of molecules will
have zero dipole moment?

Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene

Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene

Ammonia, beryllium difluoride, water, 1,4-dichlorobenzene

Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene

67 / 158

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In water hyacinth and water lily, pollination
takes place by :

Insects or wind

Wind and water

Insects and water

Water currents only

68 / 158

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The number of protons, neutrons and
electrons in..

69 / 158

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The roots that originate from the base of the
stem are

Lateral roots

Prop roots

Fibrous roots

Primary roots

70 / 158

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Which of the following statements about
inclusion bodies is incorrect?

These represent reserve material in cytoplasm

These are involved in ingestion of food particles

They lie free in the cytoplasm

They are not bound by any membrane

71 / 158

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Experimental verification of the chromosomal
theory of inheritance was done by

Boveri

Morgan

Mendel

Sutton

72 / 158

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Paper chromatography is an example of

Column chromatography

Partition chromatography

Adsorption chromatography

Thin layer chromatography

73 / 158

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Snow-blindness in Antarctic region is due to

Freezing of fluids in the eye by low temperature

High reflection of light from snow

Inflammation of cornea due to high dose of UV-B radiation

Damage to retina caused by infra-red rays

74 / 158

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The increase in the width of the depletion
region in a p-n junction diode is due to :

forward bias only

reverse bias only

both forward bias and reverse bias

increase in forward current

75 / 158

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Taking into account of the significant figures,
what is the value of 9.99 m – 0.0099 m?

9.9 m

9.98 m

9.980 m

9.9801 m

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0.06

0.6

0.006

77 / 158

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A ray is incident at an angle of incidence i on
one surface of a small angle prism (with angle
of prism A) and emerges normally from the
opposite surface. If the refractive index of the
material of the prism is μ , then the angle of
incidence is nearly equal to :

78 / 158

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A wire of length L, area of cross section A is
hanging from a fixed support. The length of the
wire changes to L1
when mass M is suspended
from its free end. The expression for Young’s
modulus is :

79 / 158

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Which of the following statements is
correct?

Adenine pairs with thymine through three H-bonds

Adenine pairs with thymine through two Hbonds

Adenine pairs with thymine through one Hbond

Adenine does not pair with thymine

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Which of the following is a natural polymer?

poly (Butadiene-styrene)

cis-1, 4-polyisoprene

poly (Butadiene-acrylonitrile)

polybutadiene

81 / 158

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Which of the following refer to correct
example(s) of organisms which have evolved
due to changes in environment brought about
by anthropogenic action?

(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated
animals like dogs.

(a) and (c)

(b), (c) and (d)

only (a)

only (d)

82 / 158

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Dissolution of the synaptonemal complex
occurs during

Zygotene

Leptotene

Diplotene

Pachytene

83 / 158

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For transistor action, which of the following
statements is correct?

The base region must be very thin and lightly doped.

Base, emitter and collector regions should have same doping concentrations.

Base, emitter and collector regions should have same size.

Both emitter junction as well as the collector junction are forward biased.

84 / 158

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The phase difference between displacement
and acceleration of a particle in a simple
harmonic motion is :

85 / 158

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Which of the following regions of the globe
exhibits highest species diversity?

Western Ghats of India

Madagascar

Amazon forests

Himalayas

86 / 158

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87 / 158

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In relation to Gross primary productivity and
Net primary productivity of an ecosystem,
which one of the following statements is
correct?

Gross primary productivity is always less than net primary productivity

Gross primary productivity is always more than net primary productivity

There is no relationship between Gross primary productivity and Net primary productivity

Gross primary productivity and Net primary productivity are one and same

88 / 158

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The sequence that controls the copy number
of the linked DNA in the vector, is termed

Recognition site

Selectable marker

Ori site

Palindromic sequence

89 / 158

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Anisole on cleavage with HI gives

90 / 158

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Which of the following statements is
not correct?

The functional insulin has A and B chains linked together by hydrogen bonds.

Genetically engineered insulin is produced in E.Coli.

The proinsulin has an extra peptide called C-peptide.

In man insulin is synthesised as a proinsulin

91 / 158

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In a certain region of space with volume 0.2 m3
, the electric potential is found to be 5 V
throughout. The magnitude of electric field in
this region is :

1 N/C

0.5 N/C

5 N/C

zero

92 / 158

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A resistance wire connected in the left gap of
a metre bridge balances a 10 Ω resistance in
the right gap at a point which divides the
bridge wire in the ratio 3 : 2. If the length of the
resistance wire is 1.5 m, then the length of 1 Ω
of the resistance wire is :

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–1.0

zero

0.5

1.0

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95 / 158

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96 / 158

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Measuring Zeta potential is useful in
determining which property of colloidal
solution?

Solubility

Stability of the colloidal particles

Size of the colloidal particles

Viscosity

97 / 158

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Two cylinders A and B of equal capacity are
connected to each other via a stop cock. A
contains an ideal gas at standard temperature
and pressure. B is completely evacuated. The
entire system is thermally insulated. The stop
cock is suddenly opened. The process is :

isobaric

adiabatic

isochoric

isothermal

98 / 158

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Identify the wrong statement with reference
to transport of oxygen

Binding of oxygen with haemoglobin is mainly related to partial pressure of O2

Partial pressure of CO2 can interfere with O2 binding with haemoglobin

Low pCO2 in alveoli favours the formation of oxyhaemoglobin

Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin

99 / 158

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Which is the important site of formation of
glycoproteins and glycolipids in eukaryotic
cells?

Polysomes

Peroxisomes

Endoplasmic reticulum

Golgi bodies

100 / 158

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If the distance between two consecutive base
pairs is 0.34 nm and the total number of base
pairs of a DNA double helix in a typical
mammalian cell is 6.6 × 109 bp, then the
length of the DNA is approximately

2.5 meters

2.2 meters

2.0 meters

2.7 meters

101 / 158

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An alkene on ozonolysis gives methanal as
one of the product. Its structure is

102 / 158

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103 / 158

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For the reaction, 2Cl(g)  Cl2(g), the
correct option is :

104 / 158

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The product(s) of reaction catalyzed by
nitrogenase in root nodules of leguminous
plants is/are

Nitrate alone

Ammonia alone

Ammonia and hydrogen

Ammonia and oxygen

105 / 158

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The solids which have the negative
temperature coefficient of resistance are:

metals

semiconductors only

insulators only

insulators and semiconductors

106 / 158

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Which of the following is not an inhibitory
substance governing seed dormancy?

Para-ascorbic acid

Gibberellic acid

Phenolic acid

Abscisic acid

107 / 158

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Which of the following is not an attribute of a
population?

Natality

Sex ratio

Mortality

Species interaction

108 / 158

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Identify the wrong statement with regard to
Restriction Enzymes.

Sticky ends can be joined by using DNA ligases.

They are useful in genetic engineering.

They cut the strand of DNA at palindromic sites.

Each restriction enzyme functions by inspecting the length of a DNA sequence.

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Dimensions of stress are :

110 / 158

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Two bodies of mass 4 kg and 6 kg are tied to
the ends of a massless string. The string
passes over a pulley which is frictionless
(see figure). The acceleration of the system in
terms of acceleration due to gravity (g) is :

g/5

g/2

g/10

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The process of growth is maximum during

Log phase

Senescence

Dormancy

Lag phase

112 / 158

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Identify the correct statement from the
following :

Vapour phase refining is carried out for Nickel by Van Arkel method.

Pig iron can be moulded into a variety of shapes.

Blister copper has blistered appearance due to evolution of CO2.

Wrought iron is impure iron with 4% carbon.

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114 / 158

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Which of the following is the correct order of
increasing field strength of ligands to form
coordination compounds?

115 / 158

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117 / 158

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Elimination reaction of 2-Bromo-pentane to
form pent-2-ene is
(a) Β-Elimination reaction
(b) Follows Zaitsev rule
(c) Dehydrohalogenation reaction
(d) Dehydration reaction

(a), (b), (c)

(a), (b), (d)

(b), (c), (d)

(a), (c), (d)

118 / 158

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Identify the wrong statement with reference
to the gene ‘I’ that controls ABO blood groups

The gene (I) has three alleles

A person will have only two of the three alleles.

When IA and IB are present together, they express same type of sugar.

Allele ‘i’ does not produce any sugar

119 / 158

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A cylinder contains hydrogen gas at pressure
of 249 kPa and temperature 27°C.

121 / 158

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A capillary tube of radius r is immersed in
water and water rises in it to a height h. The
mass of the water in the capillary is 5 g.
Another capillary tube of radius 2r is immersed
in water. The mass of water that will rise in this
tube is :

10.0 g

5.0 g

2.5 g

20.0 g

122 / 158

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The freezing point depression constant (Kf
) of
benzene is 5.12 K kg mol–1. The freezing point
depression for the solution of molality
0.078 m containing a non-electrolyte solute in
benzene is (rounded off upto two decimal
places) :

0.40 K

0.80 K

0.20 K

0.60 K

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The process responsible for facilitating loss
of water in liquid form from the tip of grass
blades at night and in early morning is

Root pressure

Imbibition

Plasmolysis

Transpiration

124 / 158

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Floridean starch has structure similar to

Mannitol and algin

Laminarin and cellulose

Amylopectin and glycogen

Starch and cellulose

125 / 158

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Identify the basic amino acid from the
following.

Tyrosine

Glutamic Acid

Valine

Lysine

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Identify the incorrect match.
Name IUPAC Official Name

(a) Unnilunium (i) Mendelevium
(b) Unniltrium (ii) Lawrencium
(c) Unnilhexium (iii)Seaborgium
(d) Unununnium (iv) Darmstadtium

(d), (iv)

(a), (i)

(c), (iii)

(b), (ii)

127 / 158

Category: NEET & JEE

An element has a body centered cubic (bcc)
structure with a cell edge of 288 pm. The
atomic radius is

128 / 158

Category: NEET & JEE

200 s

100 s

1000 s

500 s

129 / 158

Category: NEET & JEE

If the head of cockroach is removed, it may
live for few days because

the cockroach does not have nervous system.

the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.

the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.

the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body

130 / 158

Category: NEET & JEE

Select the correct match

Thalassemia – X linked

Haemophilia – Y linked

Sickle cell anaemia – Autosomal recessive trait, chromosome-11

Phenylketonuria – Autosomal dominant trait

131 / 158

Category: NEET & JEE

A screw gauge has least count of 0.01 mm and
there are 50 divisions in its circular scale.
The pitch of the screw gauge is :

0.5 mm

0.25 mm

1.0 mm

0.01 mm

132 / 158

Category: NEET & JEE

An increase in the concentration of the
reactants of a reaction leads to change in

activation energy

collision frequency

heat of reaction

threshold energy

133 / 158

Category: NEET & JEE

Which of the following amine will give the
carbyle test?

134 / 158

Category: NEET & JEE

Identify the incorrect statement

Due to deposition of tannins, resins, oils etc., heart wood is dark in colour

Sapwood is the innermost secondary xylem and is lighter in colour

Heart wood does not conduct water but gives mechanical support

Sapwood is involved in conduction of water and minerals from root to leaf

135 / 158

Category: NEET & JEE

In Young’s double slit experiment, if the
separation between coherent sources is halved
and the distance of the screen from the
coherent sources is doubled, then the fringe
width becomes :

double

one-fourth

half

four times

136 / 158

Category: NEET & JEE

Hydrolysis of sucrose is given by the following
reaction. Sucrose H2 O →Glucose+ Fructose

137 / 158

Category: NEET & JEE

Which of the following hormone levels will
cause release of ovum (ovulation) from the
graffian follicle?

High concentration of Estrogen

High concentration of Progesterone

Low concentration of LH

Low concentration of FSH

138 / 158

Category: NEET & JEE

Which of the following is put into Anaerobic
sludge digester for further sewage treatment?

Effluents of primary treatment

Floating debris

Primary sludge

Activated sludge

139 / 158

Category: NEET & JEE

The transverse section of a plant shows
following anatomical features :

(a) Large number of scattered vascular
bundles surrounded by bundle sheath
(b) Large conspicuous parenchymatous
ground tissue
(c) Vascular bundles conjoint and closed
(d) Phloem parenchyma absent
Identify the category of plant and its part :

Monocotyledonous root

Dicotyledonous root

Dicotyledonous stem

Monocotyledonous stem

140 / 158

Category: NEET & JEE

The plant parts which consist of two
generations - one within the other

Germinated pollen grain with two male gametes

Embryo sac inside the ovule

Pollen grains inside the anther

Seed inside the fruit

141 / 158

Category: NEET & JEE

Name the enzyme that facilitates opening of
DNA helix during transcription.

DNA polymerase

DNA helicase

DNA ligase

RNA polymerase

142 / 158

Category: NEET & JEE

Cuboidal epithelium with brush border of
microvilli is found in

Lining of intestine

Ducts of salivary gland

Eustachian tube

Proximal convoluted tubule of nephron

143 / 158

Category: NEET & JEE

Select the correct events that occur during
inspiration.

(a) Contraction of diaphragm
(b) Contraction of external inter-costal
muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases

(a) and (b)

(a), (b) and (d)

only (d)

144 / 158

Category: NEET & JEE

How many true breeding pea plant varieties
did Mendel select as pairs, which were similar
except in one character with contrasting
traits?

145 / 158

Category: NEET & JEE

For the logic circuit shown, the truth table is:

146 / 158

Category: NEET & JEE

Choose the correct pair from the following

Nucleases - Separate the two strands of DNA

Ligases - Join the two DNA molecules

Exonucleases - Make cuts at specific positions within DNA

Polymerases - Break the DNA into fragments

147 / 158

Category: NEET & JEE

148 / 158

Category: NEET & JEE

Identify the correct statement with regard to
G1 phase (Gap 1) of interphase.

Nuclear Division takes place.

Reorganisation of all cell components takes place

Cell is metabolically active, grows but does not replicate its DNA.

DNA synthesis or replication takes place

149 / 158

Category: NEET & JEE

Some dividing cells exit the cell cycle and
enter vegetative inactive stage. This is called
quiescent stage (G0). This process occurs at
the end of

G2 phase

S phase

M phase

G1 phase

150 / 158

Category: NEET & JEE

From his experiments, S.L. Miller produced
amino acids by mixing the following in a
closed flask

CH4, H2, NH3 and water vapor at 600°C

CH3, H2, NH4 and water vapor at 800°C

CH4, H2, NH3 and water vapor at 800°C

CH3, H2, NH3 and water vapor at 600°C

151 / 158

Category: NEET & JEE

152 / 158

Category: NEET & JEE

The infectious stage of Plasmodium that
enters the human body is

Male gametocytes

Trophozoites

Female gametocytes

Sporozoites

153 / 158

Category: NEET & JEE

The color code of a resistance is given below

The values of resistance and tolerance,
respectively, are

470 kΩ , 5%

470 Ω, 5%

47 kΩ, 10%

4.7 kΩ, 5%

154 / 158

Category: NEET & JEE

155 / 158

Category: NEET & JEE

Identify the substances having glycosidic bond
and peptide bond, respectively in their
structure

Inulin, insulin

Cellulose, lecithin

Chitin, cholesterol

Glycerol, trypsin

156 / 158

Category: NEET & JEE

In light reaction, plastoquinone facilitates the
transfer of electrons from

Cytb6f complex to PS-I

PS-I to NADP+

PS-II to Cytb6f complex

PS-I to ATP synthase

157 / 158

Category: Social Science

Light of frequency 1.5 times the threshold
frequency is incident on a photosensitive
material. What will be the photoelectric
current if the frequency is halved and intensity
is doubled?

doubled

zero

one-fourth

four times

158 / 158

Category: Current Affairs

Which of the following pairs is of unicellular
algae?

Chlorella and Spirulina

Anabaena and Volvox

Gelidium and Gracilaria

Laminaria and Sargassum

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NEET 2020 Question Papers E1 Online Mock test With Answers

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The National Eligibility cum Entrance Test (NEET) is an all-India medical entrance examination held in India. The exam is conducted by the National Testing Agency (NTA) every year to offer admissions to students in undergraduate medical programs.

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