Question 1: Palette 1/49

NEET 2026 MCQ

Arrange the following steps of somatic hybridisation in a correct sequence.

A. Digestion of cell walls.

B. Isolation of naked protoplasts.

C. Fusion of protoplasts to get hybrid protoplast.

D. Isolation of single cells from two different varieites of plants.

E. Growing of hybrid protoplast to form a new plant.

Choose the correct answer from the options given below:

A

D, A, B, C, E

B

$\mathrm{E}, \mathrm{B}, \mathrm{A}, \mathrm{D}, \mathrm{C}$

C

D, B, A, E, C

D

$\mathrm{E}, \mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$

Question 2: Palette 2/49

NEET 2023 MCQ

Select the incorrect statement with respect to Multiple Ovulation Embryo Transfer (MOET) Technology.

A

Fertilised eggs at 4 to 6 cells - stages are recovered non-surgically from super-ovulating cow and transferred to surrogate mother.

B

It is used to increase herd size in a short time

C

Cow is administered with hormones to induce super-ovulation.

D

Super-ovulating cow is either mated with elite bull or is artificially inseminated.

Question 3: Palette 3/49

NEET 2023 MCQ

Which one of the following is NOT an advantage of inbreeding?

A

It exposes harmful recessive genes but are eliminated by selection.

B

Elimination of less desirable genes and accumulation of superior genes takes place due to it.

C

It decreases the productivity of inbred population, after continuous inbreeding.

D

It decreases homozygosity.

Question 4: Palette 4/49

NEET 2022 MCQ

Which of the following can be expected if scientists succeed in introducing apomictic gene into hybrid varieties of crops?

A

There will be segregation of the desired characters only in the progeny

B

Polyembryony will be seen and each seed will produce many plantlets

C

Seeds of hybrid plants will show longer dormancy

D

Farmers can keep on using the seeds produced by the hybrids to raise new crop year after year

Question 5: Palette 5/49

NEET 2022 MCQ

Select the incorrect statement with respect to inbreeding of animals.

A

It exposes harmful recessive genes that are eliminated by selection.

B

It is used for evolving pure lines in cattle.

C

It helps in accumulation of superior genes and elimination of less desirable genes.

D

It decreases homozygosity.

Question 6: Palette 6/49

NEET 2022 MCQ

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:

A

Bio-magnification

B

Bio-remediation

C

Bio-fortification

D

Bio-accumulation

Question 7: Palette 7/49

NEET 2021 MCQ

Mutations in plant cells can be induced by :

A

Zeatin

B

Kinetin

C

Infrared rays

D

Gamma rays

Question 8: Palette 8/49

NEET 2021 MCQ

Which of the following is not an objective of Biofortification of crops?

A

Improve micronutrient and mineral content

B

Improve protein content

C

Improve resistance to diseases

D

Improve vitamin content

Question 9: Palette 9/49

NEET 2021 MCQ

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

A

Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage

B

Cow is administered hormone having LH like activity for supper ovulation

C

Cow yields about 6-8 eggs at a time

D

Cow is fertilized by artificial insemination

Question 10: Palette 10/49

NEET 2020 MCQ

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

A

Out crossing

B

Mutational breeding

C

Inbreeding

D

Cross breeding

Question 11: Palette 11/49

NEET 2019 MCQ

Select the incorrect statement.

A

Inbreeding selects harmful recessive genes that reduce fertility and productivity.

B

Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.

C

Inbreeding increases homozygosity.

D

Inbreeding is essential to evolve purelines in any animal.

Question 12: Palette 12/49

NEET 2019 MCQ

Which of the following is true for Golden rice?

A

It is drought tolerant, developed using Agrobacterium vector.

B

It has yellow grains, because of a gene introduced from a primitive variety of rice.

C

It is Vitamin A enriched, with a gene from daffodil.

D

It is pest resistant, with a gene from Bacillus thuringiensis.

Question 13: Palette 13/49

NEET 2017 MCQ

Homozygous purelines in cattle can be obtained by :

A

mating of related individuals of same breed

B

mating of individuals of different species

C

mating of individuals of different breed

D

mating of unrelated individuals of same breed

Question 14: Palette 14/49

NEET 2017 MCQ

Artificial selection to obtain cows yielding higher milk output represents :

A

directional as it pushes the mean of the character in one direction

B

stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows.

C

disruptive as it splits the population into two, one yielding higher output and the other lower output.

D

stabilizing selection as it stabilizes this character in the population.

Question 15: Palette 15/49

NEET 2016 MCQ

Among the following edible fishes, which one is a marine fish having rich source of omeg-3 fatty acids ?

A

Mangur

B

Mystus

C

Mackerel

D

Mrigala

Question 16: Palette 16/49

NEET 2016 MCQ

A true breeding plant is -

A

produced due to cross-pollination among unrelated plants

B

one that is able to breed on its own

C

near homozygous and produces offspring of its own kind

D

always homozygous recessive in its genetic constitution

Question 17: Palette 17/49

NEET 2016 MCQ

Interspecific hybridisation is the mating of

A

animals within same breed without having common ancestors

B

superior males and females of different breeds

C

more closely related individuals within same breed for 4-6 generations =

D

two different related species

Question 18: Palette 18/49

NEET 2016 MCQ

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called -

A

Shifting agriculture

B

Strip farming

C

Ley farming

D

Contour farming

Question 19: Palette 19/49

NEET 2015 MCQ

A protoplast is a cell -

A

undergoing division

B

without plasma membrane

C

without nucleus

D

without cell wall

Question 20: Palette 20/49

NEET 2015 MCQ

Outbreeding is an important strategy of animal husbandry because it :

A

helps in accumulation of superior genes.

B

is useful in overcoming inbreeding depression.

C

is useful in producing purelines of animals.

D

exposes harmful recessive genes that are eliminated by selection.

Question 21: Palette 21/49

NEET 2015 MCQ

Which of the following enhances or induces fusion of protoplasts ?

A

Sodium chloride and potassium chloride

B

IAA and kinetin

C

Polyethylene glycol and sodium nitrate

D

IAA and gibberellins

Question 22: Palette 22/49

NEET 2015 MCQ

A technique of micropropagation is

A

somatic embryogenesis

B

embryo rescue

C

protoplast fusion

D

somatic hybridisation

Question 23: Palette 23/49

NEET 2014 MCQ

In vitro clonal propagation in plants is characterized by :

A

Microscopy

B

Northern blotting

C

Electrophoresis and HPLC

D

PCR and RAPD

Question 24: Palette 24/49

NEET 2013 MCQ

The viability of seeds is tested by :

A

2, 3, 5 triphenyl tetrazolium chloride

B

Safranine

C

2, 6 dichlorophenol indophenols

D

DMSO

Question 25: Palette 25/49

NEET 2013 MCQ

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called :

A

germplasm collection

B

evaluation and selection of parents

C

selection of superior recombinants

D

cross-hybridisation among the selected parents

Question 26: Palette 26/49

NEET 2012 MCQ

Green revolution in India occurred during -

A

1980's

B

1950's

C

1960's

D

1970's

Question 27: Palette 27/49

NEET 2011 MCQ

'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of :

A

Chilli

B

Sugarcane

C

Wheat

D

Maize

Question 28: Palette 28/49

NEET 2011 MCQ

A collection of plants and seeds having diverse alleles of all the genes of a crop is called :

A

Gene library

B

Genome

C

Germplasm

D

Herbarium

Question 29: Palette 29/49

NEET 2011 MCQ

"Jaya" and "Ratna" developed for green revolution in India are the varieties of :

A

Bajra

B

Wheat

C

Maize

D

Rice

Question 30: Palette 30/49

NEET 2008 MCQ

Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide ?

A

Downy mildew of grapes

B

Bacterial leaf blight of rice

C

Loose smut of wheat

D

Black rust of wheat

Question 31: Palette 31/49

NEET 2008 MCQ

Consider the following four measures (1-4) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common:
(i) Spray with Bordeaux mixture
(ii) Control of the insect vector of the disease pathogen
(iii) Use of only disease-free seeds
(iv) Use of varieties resistant to the disease
Which two of the above measures can control the disease ?

A

(i) and (ii)

B

(i) and (iv)

C

(ii) and (iii)

D

(iii) and (iv)

Question 32: Palette 32/49

NEET 2007 MCQ

In cloning of cattle a fertilized egg is taken out of the mother's womb and:-

A

In the eight cell stage the individual cells are separated under electrical field for further development in culture media

B

The egg is divided into 4 pairs of cells which are implanted into the womb of other cows

C

In the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows.

D

From this upto eight identical twins can be produced

Question 33: Palette 33/49

NEET 2007 MCQ

In maize, hybrid vigour is exploited by:-

A

Crossing of two inbred parental lines

B

Bombarding the seeds with DNA

C

Harvesting seeds from the most productive plants

D

Inducing mutations

Question 34: Palette 34/49

NEET 2007 MCQ

Which one of the following is a viral disease of poultry ?

A

Salmonellosis

B

New Castle disease

C

Pasteurellosis

D

Coryza

Question 35: Palette 35/49

NEET 2007 MCQ

Compared to a bull a bullok is docile because of:-

A

Lower levels of adrenalin/noradrenalin in its blood

B

Lower levels of blood testosterone

C

Higher levels of thyroxin

D

Higher levels of cortisone

Question 36: Palette 36/49

NEET 2006 MCQ

In order to obtain virus-free plants through tissue culture the best method is-

A

Anther culture

B

Protoplast culture

C

Meristem culture

D

Embryo rescue

Question 37: Palette 37/49

NEET 2006 MCQ

Crop plants grown in monoculture are-

A

Characterised by poor root system

B

Highly prone to pests

C

Low in yield

D

Free from intraspecific competition

Question 38: Palette 38/49

NEET 2006 MCQ

In Maize, hybrid vigour is exploited by-

A

Crossing of two inbred parental lines

B

Inducing mutations

C

Harvesting seeds from the most productive plants

D

Bombarding the protoplast with DNA

Question 39: Palette 39/49

NEET 2006 MCQ

Triticale, the first man-made cereal crop, has been obtained by crossing wheat with

A

Pearl millet

B

Sugarcane

C

Rye

D

Barley

Question 40: Palette 40/49

NEET 2005 MCQ

Three crops that contribute maximum to global food grain production are -

A

Wheat maize and sorghum

B

Wheat, rice and barley

C

Wheat, rice and maize

D

Rice, maize and sorghum

Question 41: Palette 41/49

NEET 2005 MCQ

Which of the following is generally used for induced mutagenesis in crop plants ?

A

UV (260 nm)

B

Alpha particles

C

Gamma rays (from cobalt 60)

D

X rays

Question 42: Palette 42/49

NEET 2005 MCQ

The name of Norman Borlaug is associated with-

A

Blue Revolution

B

Yellow Revolution

C

Green Revolution

D

White Revolution

Question 43: Palette 43/49

NEET 2004 MCQ

The technique of obtaining large number of plantlets by tissue culture method is called –

A

Macropropagation

B

Organ culture

C

Plantlet culture

D

Micropropagation

Question 44: Palette 44/49

NEET 2004 MCQ

India's wheat yield revolution in the 1960s was possible primarily due to :-

A

Hybrid seeds

B

Quantitative trait mutations

C

Increased chlorophyll content

D

Mutations resulting in plant height reduction

Question 45: Palette 45/49

NEET 2001 MCQ

Before the European invader which vegetable was absent in India ?

A

Simla mirch and Brinjal

B

Bitter gourd

C

Maize and chichinda

D

Potato and Tomato

Question 46: Palette 46/49

NEET 2001 MCQ

Which fish selectively feed on larva of mosquito ?

A

Clarias

B

Rohu

C

Exocoetus

D

Gambusia

Question 47: Palette 47/49

NEET 2001 MCQ

Triticale is obtained by crossing wheat with

A

Barley

B

Rye

C

Oat

D

Maize

Question 48: Palette 48/49

NEET 2000 MCQ

Which statement is correct ?

A

Workers are the smallest of the three castes

B

Wax is waste material of honey bee

C

Drone of honey bee is diploid

D

A. indica is largest wild honey bee

Question 49: Palette 49/49

NEET 2000 MCQ

Coconut milk is used in tissue culture in which present :

A

Auxin

B

Gibberellin

C

Ethylene

D

Cytokinin