Question 1: Palette 1/82

NEET 2026 MCQ

The human protein named $\boldsymbol{\alpha}$-1-antitrypsin, obtained from transgenic animals, is used for the treatment of $\_\_\_\_$ .

A

Emphysema

B

Alzheimer's disease

C

Rheumatoid arthritis

D

Cystic fibrosis

Question 2: Palette 2/82

NEET 2026 MCQ

The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would contrl cotton bollworms and corn borer, respectively?

A

cryIAc and cryIAb

B

crylAc and cryllAb

C

cryllAb and crylAc

D

cryIAc and cryIIIAb

Question 3: Palette 3/82

NEET 2026 MCQ

The inactive form of Bt toxin is converted to the active form in the insect gut $\_\_\_\_$

A

by nucleases

B

due to alkaline pH

C

due to acidic pH

D

by proteases

Question 4: Palette 4/82

NEET 2025 MCQ

Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?

A

Virus

B

Phage

C

Bacterium

D

Yeast

Question 5: Palette 5/82

NEET 2024 MCQ

Following are the steps involved in action of toxin in Bt. Cotton

A. The inactive toxin converted into active form due to alkaline pH of gut of insect.

B. Bacillus thuringiensis produce crystals with toxic insecticidal proteins.

C. The alkaline pH solubilises the crystals.

D. The activated toxin binds to the surface of midgut cells, creates pores and causes death of the insect.

E. The toxin proteins exist as inactive protoxins in bacteria.

Choose the correct sequence of steps from the options given below:

A

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

B

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

C

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

D

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

Question 6: Palette 6/82

NEET 2024 MCQ

The capacity to generate a whole plant from any cell of the plant is called:

A

Totipotency

B

Micropropagation

C

Differentiation

D

Somatic hybridization

Question 7: Palette 7/82

NEET 2024 MCQ

Given below are two statements:

Statement I : Bt toxins are insect group specific and coded by a gene cry IAc.

Statement II : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.

In the light of the above statements, choose the correct answer from the options given below:

A

Both Statement I and Statement II are true

B

Both Statement I and Statement II are false

C

Statement I is true but Statement II is false

D

Statement I is false but Statement II is true

Question 8: Palette 8/82

NEET 2024 MCQ

What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism?

A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism.

B. It may get integrated into the genome of the recipient.

C. It may multiply and be inherited along with the host DNA.

D. The alien piece of DNA is not an integral part of chromosome.

E. It shows ability to replicate.

Choose the correct answer from the options given below:

A

A and B only

B

D and E only

C

B and C only

D

A and E only

Question 9: Palette 9/82

NEET 2024 MCQ

Which of the following are fused in somatic hybridization involving two varieties of plants?

A

Callus

B

Somatic embryos

C

Protoplasts

D

Pollens

Question 10: Palette 10/82

NEET 2024 MCQ

Match List I with List II

	List - I		List - II
A.	$\alpha$ -I antitrypsin	I.	Cotton bollworm
B.	Cry IAb	II.	ADA deficiency
C.	Cry IAc	III.	Emphysema
D.	Enzyme replacement therapy	IV.	Corn borer

Choose the correct answer form the options given below:

A

A-II, B-I, C-IV, D-III

B

A-III, B-I, C-II, D-IV

C

A-III, B-IV, C-I, D-II

D

A-II, B-IV, C-I, D-III

Question 11: Palette 11/82

NEET 2024 MCQ

Which of the following statements is incorrect?

A

A bio-reactor provides optimal growth conditions for achieving the desired product

B

Most commonly used bio-reactors are of stirring type

C

Bio-reactors are used to produce small scale bacterial cultures

D

Bio-reactors have an agitator system, an oxygen delivery system and foam control system

Question 12: Palette 12/82

NEET 2024 MCQ

The following diagram showing restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’ genes :

A

The gene ‘X’ is responsible for resistance to antibiotics and ‘Y’ for protein involved in the replication of Plasmid.

B

The gene ‘X’ is responsible for controlling the copy number of the linked DNA and ‘Y’ for protein involved in the replication of Plasmid.

C

The gene ‘X’ is for protein involved in replication of Plasmid and ‘Y’ for resistance to antibiotics.

D

Gene ’X’ is responsible for recognitions sites and ‘Y’ is responsible for antibiotic resistance.

Question 13: Palette 13/82

NEET 2023 MCQ

Which of the following statement is incorrect about Agrobacterium tumifaciens?

A

It is used to deliver gene of interest in both prokaryotic as well as eukaryotic host cells.

B

'Ti' plasmid from Agrobacterium tumifaciens used for gene transfer is not pathogenic to plant cell.

C

It transforms normal plant cells into tumor cells.

D

It delivers 'T-DNA' into plant cell.

Question 14: Palette 14/82

NEET 2023 MCQ

Which of the following can act as molecular scissors?

A

Restriction enzymes

B

DNA ligase

C

RNA polymerase

D

DNA polymerase

Question 15: Palette 15/82

NEET 2023 MCQ

Match List-I with List-II.

	List - I		List - II
(A)	Gene therapy	(I)	Separation of DNA fragments
(B)	RNA interference	(II)	Diagnostic test for AIDS
(C)	ELISA	(III)	Cellular defence
(D)	Gel Electrophoresis	(IV)	Allows correction of a gene defect.

Choose the correct answer from the options given below :

A

(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

B

(A)-(IV), (B)-(II), (C)-(III), (D)-(I)

C

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

D

(A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Question 16: Palette 16/82

NEET 2023 MCQ

During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out

A

DNA

B

Histones

C

Polysaccharides

D

RNA

Question 17: Palette 17/82

NEET 2023 MCQ

In gene gun method used to introduce alien DNA into host cells, microparticles of ________ metal are used.

A

Zinc

B

Tungsten or gold

C

Silver

D

Copper

Question 18: Palette 18/82

NEET 2023 MCQ

Main steps in the formation of Recombinant DNA are given below. Arrange these steps in a correct sequence.

A. Insertion of recombinant DNA into the host cell

B. Cutting of DNA at specific location by restriction enzyme

C. Isolation of desired DNA fragment

D. Amplification of gene of interest using PCR

Choose the correct answer from the options given below :

A

C, A, B, D

B

C, B, D, A

C

B, D, A, C

D

B, C, D, A

Question 19: Palette 19/82

NEET 2022 MCQ

Milk of transgenic ‘Cow Rosie’ was nutritionally more balanced product for human babies than natural cow milk because it contained:

A

Human enzyme Adenosine Deaminase (ADA)

B

Human protein $\alpha$-1-antitrypsin

C

Human alpha-lactalbumin

D

Human insulin-like growth factor

Question 20: Palette 20/82

NEET 2022 MCQ

In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?

A

5'GATACT3' ; 3'CTATGA5'

B

5'GAATTC3' ; 3'CTTAAG5'

C

5'CTCAGT3' ; 3'GAGTCA5'

D

5'GTATTC3' ; 3'CATAAG5'

Question 21: Palette 21/82

NEET 2022 MCQ

In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:

A

Retroviral vector is introduced into these lymphocytes.

B

Gene isolated from marrow cells producing ADA is introduced into cells at embryonic stages

C

Lymphocytes from patient's blood are grown in culture, outside the body

D

Genetically engineered lymphocytes are not immortal cells.

Question 22: Palette 22/82

NEET 2022 MCQ

Statements related to human Insulin are given below.

Which statements is/are correct about genetically engineered Insulin?

(a) Pro-hormone insulin contain extra stretch of C-peptide

(b) A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them.

(c) Insulin used for treating Diabetes was extracted from Cattles and Pigs.

(d) Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.

(e) Some patients develop allergic reactions to the foreign insulin.

Choose the most appropriate answer from the options given below :

A

(a), (b) and (d) only

B

(b) only

C

(c) and (d) only

D

(c), (d) and (e) only

Question 23: Palette 23/82

NEET 2021 MCQ

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as :

A

Safety testing

B

Biopiracy

C

Gene therapy

D

Molecular diagnosis

Question 24: Palette 24/82

NEET 2021 MCQ

With regard to insulin choose correct options.

(1) C-peptide is not present in mature insulin.

(2) The insulin produced by rDNA technology has C-peptide.

(3) The pro-insulin has C-peptide

(4) A-peptide and B-peptide of insulin are interconnected by disulphide bridges.

Choose the correct answer from the options given below.

A

(1) and (4) only

B

(2) and (4) only

C

(2) and (3) only

D

(1), (3) and (4) only

Question 25: Palette 25/82

NEET 2020 MCQ

Which of the following statements is not correct?

A

In man insulin is synthesised as a proinsulin

B

The proinsulin has an extra peptide called C-peptide.

C

Genetically engineered insulin is produced in E.Coli.

D

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

Question 26: Palette 26/82

NEET 2020 MCQ

Match the following columns and select the correct option.

Column-I	Column-II
(a) Bt cotton	(i) Gene therapy
(b) Adenosine deaminase deficiency	(ii) Cellular defence
(c) RNAi	(iii) Detection of HIV infection
(d) PCR	(iv) Bacillus thuringiensis

A

(A) $ \to $ (i), (B) $ \to $ (ii), (C) $ \to $ (iii), (D) $ \to $ (iv)

B

(A) $ \to $ (iii), (B) $ \to $ (ii), (C) $ \to $ (i), (D) $ \to $ (iv)

C

(A) $ \to $ (iv), (B) $ \to $ (i), (C) $ \to $ (ii), (D) $ \to $ (iii)

D

(A) $ \to $ (ii), (B) $ \to $ (iii), (C) $ \to $ (iv), (D) $ \to $ (i)

Question 27: Palette 27/82

NEET 2019 MCQ

Which of the following glucose transporters is insulin-dependent?

A

GLUT III

B

GLUT IV

C

GLUT I

D

GLUT II

Question 28: Palette 28/82

NEET 2018 MCQ

Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes?

A

Retrovirus

B

Ti plasmid

C

$\lambda $ phage

D

pBR322

Question 29: Palette 29/82

NEET 2018 MCQ

A 'new' variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to

A

Co-667

B

Sharbati Sonora

C

Lerma Rojo

D

Basmati

Question 30: Palette 30/82

NEET 2018 MCQ

In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

A

Indian Council of Medical Research (ICMR)

B

Council for Scientific and Industrial Research (CSIR)

C

Research Committee on Genetic Manipulation (RCGM)

D

Genetic Engineering Appraisal Committee (GEAC)

Question 31: Palette 31/82

NEET 2018 MCQ

Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called

A

bio-infringement

B

biodegradation

C

biopiracy

D

bioexploitation

Question 32: Palette 32/82

NEET 2016 MCQ

Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase [ADA] deficiency ?

A

Radiation therapy

B

Immunotherapy

C

Gene therapy

D

Chemotherapy

Question 33: Palette 33/82

NEET 2016 MCQ

Which part of the tobacco plant is infected by Meloidogyne incognita ?

A

Flower

B

Stem

C

Leaf

D

Root

Question 34: Palette 34/82

NEET 2016 MCQ

The two polypeptides of human insulin are linked together by

A

Hydrogen bonds

B

Covalent bond

C

Disulphide bridges

D

Phosphodiester bond

Question 35: Palette 35/82

NEET 2015 MCQ

Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of -

A

Vitamin C

B

Omega 3

C

Vitamin A

D

Vitamin B

Question 36: Palette 36/82

NEET 2015 MCQ

The introduction of t-DNA into plants involves -

A

Altering the pH of the soil, then heatshocking the plants

B

Infection of the plant by Agrobacterium tumefaciens

C

Exposing the plants to cold for a brief period

D

Allowing the plant roots to stand in water

Question 37: Palette 37/82

NEET 2015 MCQ

Which body of the Government of India regulates GM research and safety of introducing GM organisms for public services ?

A

Research Committee on Genetic Manipulation

B

Genetic Engineering Approval Committee

C

Indian Council of Agricultural Research

D

Bio - safety committee

Question 38: Palette 38/82

NEET 2015 MCQ

The crops engineered for glyphosate are resistant/ tolerant to :

A

Bacteria

B

Herbicides

C

Fungi

D

Insects

Question 39: Palette 39/82

NEET 2015 MCQ

In Bt cotton, the Bt toxin present in plant tissue as pro - toxin is converted into active toxin due to :

A

action of gut micro-organisms

B

presence of conversion factors in insect gut

C

alkaline pH of the insect gut

D

acidic pH of the insect gut

Question 40: Palette 40/82

NEET 2014 MCQ

The first human hormone produced by recombinant DNA technology is :

A

Estrogen

B

Insulin

C

Thyroxin

D

Progesterone

Question 41: Palette 41/82

NEET 2014 MCQ

To obtain virus−free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?

A

Epidermis only

B

Palisade parenchyma

C

Both apical and axillary meristems

D

Apical meristem only

Question 42: Palette 42/82

NEET 2013 MCQ

RNA interference involves :-

A

Interference of RNA in synthesis of DNA

B

Synthesis of cDNA from RNA using reverse transcriptase

C

Synthesis of mRNA from DNA

D

Silencing of specific mRNA due to complementary RNA

Question 43: Palette 43/82

NEET 2013 MCQ

Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising:

A

development of new species

B

genetically uniform population identical to the original parent

C

variants through picking up somaclonal variations

D

homozygous diploid plants

Question 44: Palette 44/82

NEET 2013 MCQ

Which of the following statements is not true about somatic embryogenesis ?

A

Somatic embryos can develop from microspores

B

Somatic embryo is induced usually by an auxin such as 2, 4–D

C

The pattern of development of a somatic embryo is comparable to that of a zygotic embryo

D

A somatic embryo develops from a somatic cell

Question 45: Palette 45/82

NEET 2013 MCQ

Which one of the following vectors is used to replace the defective gene in gene therapy ?

A

Ti plasmid

B

Cosmid

C

Ri plasmid

D

Adenovirus

Question 46: Palette 46/82

NEET 2013 MCQ

Which of the following Bt crops is being grown in India by the farmers ?

A

Soybean

B

Cotton

C

Brinjal

D

Maize

Question 47: Palette 47/82

NEET 2012 MCQ

Which part would be most suitable for raising virus free plants for microporpagation ?

A

Vascular tissue

B

Node

C

Bark

D

Meristem

Question 48: Palette 48/82

NEET 2012 MCQ

The first clinical gene therapy was given for treating -

A

Rheumatoid arthritis

B

Adenosine deaminase deficiency

C

Diabetes mellitus

D

Chicken pox

Question 49: Palette 49/82

NEET 2012 MCQ

What is it that forms the basis of DNA Fingerprinting ?

A

The relative proportions of purines and pyrimidines in DNA

B

The relative amount of DNA in the ridges and grooves of the fingerprints

C

The relative difference in the DNA occurrence in blood, skin and saliva

D

Satellite DNA occurring as highly repeated short DNA segments

Question 50: Palette 50/82

NEET 2012 MCQ

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells) :

A

An antifeedant

B

A toxic protein

C

Both sense and anti-sense RNA

D

A particular hormone

Question 51: Palette 51/82

NEET 2012 MCQ

Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency

A

Flaver Savr Tomato

B

Canolla

C

Bt- Brinjal

D

Golden rice

Question 52: Palette 52/82

NEET 2012 MCQ

Which one of the following is a case of wrong matching ?

A

Somatic hybridization - Fusion of two diverse cells

B

Callus - Unorganised mass of cells produced in tissue culture

C

Vector DNA - site for tRNA synthesis

D

Micropropagation - In vitro production of plants in large numbers

Question 53: Palette 53/82

NEET 2011 MCQ

Read the following four statements (A-D) about certain mistakes in two of them :
(A) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalbumin enriched.
(B) Restriction enzymes are used in isolation of DNA from other macro-molecules
(C) Downstream processing is one of the steps of R-DNA technology
(D) Disarmed pathogen vectors are also used in transfer of R-DNA into the host
Which are the two statements having mistakes ?

A

Statements (B) and (C)

B

Statements (A) and (C)

C

Statements (A) and (B)

D

Statements (C) and (D)

Question 54: Palette 54/82

NEET 2011 MCQ

Silencing of mRNA has been used in producing transgenic plants resistant to :

A

White rusts

B

Nematodes

C

Bacterial blights

D

Bollworms

Question 55: Palette 55/82

NEET 2011 MCQ

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein :

A

is activated by acid pH of the foregut of the insect pest.

B

binds with epithelial cells of midgut of the insect pest ultimately killing it

C

is coded by several genes including the gene cry

D

does not kill the carrier bacterium which is itself resistant to this toxin

Question 56: Palette 56/82

NEET 2011 MCQ

Maximum number of existing transgenic animals is of :

A

Mice

B

Cow

C

Pig

D

Fish

Question 57: Palette 57/82

NEET 2011 MCQ

The process of RNA interference has been used in the development of plants resistant to :

A

Nematodes

B

Fungi

C

Viruses

D

Insects

Question 58: Palette 58/82

NEET 2010 MCQ

Which one of the following is now being commercially produced by biotechnological procedures ?

A

Insulin

B

Morphine

C

Nicotine

D

Quinine

Question 59: Palette 59/82

NEET 2010 MCQ

Genetic engineering has been successfully used for producing –

A

transgenic models for studying new treatments for certain cardiac disease

B

Animals like bulls for farm work as they have super power

C

transgenic mice for testing safety of polio vaccine before use in humans

D

transgenic Cow-Rosie which produces high fat milk for making ghee

Question 60: Palette 60/82

NEET 2010 MCQ

An improved variety of transgenic basmati rice

A

gives high yield but has no characteristic atoms

B

Does not require chemical fertilizers and growth hormones

C

is completely resistant to all insect pests and disease of paddy

D

gives high yield and is rich in vitamin A

Question 61: Palette 61/82

NEET 2010 MCQ

The genetically-modified (GM) brinjal in India has been developed for:

A

Enhancing shelf life

B

Insect-resistance

C

Drought-resistance

D

Enhancing mineral content

Question 62: Palette 62/82

NEET 2010 MCQ

Some of the characteristics of Bt cotton are –

A

High yield and production of toxic protein crystals which kill dipteran pests

B

High yield and resistance to bollworms

C

Long fibre and resistance to aphids

D

Medium yield, long fibre and resistance to beetle pests

Question 63: Palette 63/82

NEET 2010 MCQ

Breeding of crops with high levels of minerals, vitamins and proteins is called –

A

Biofortification

B

Biomagnification

C

Micorpropagation

D

Somatic hybridisation

Question 64: Palette 64/82

NEET 2009 MCQ

Somaclones are obtained by : -

A

Tissue culture

B

Plant breeding

C

Genetic engineering

D

Irradiation Genetic engineering

Question 65: Palette 65/82

NEET 2009 MCQ

What is true about Bt toxin ?

A

The activated toxin enters the ovaries of the pest to sterillise it and thus prevent its multiplication.

B

Bt protein exists as active toxin in the Bacillus

C

The concerned Bacillus has antitoxins

D

The inactive protoxin gets converted into active form in the insect gut

Question 66: Palette 66/82

NEET 2009 MCQ

Polyethylene glycol method is used for :

A

Biodiesel production

B

Seedless fruit production

C

Energy production from sewage

D

Gene transfer without a vector

Question 67: Palette 67/82

NEET 2009 MCQ

The bacterium Bacillus thuringiensis is widely used in contemporary biology as -

A

Indicator of water pollution

B

Agent for production of dairy products

C

Source of industrial enzyme

D

Insecticide

Question 68: Palette 68/82

NEET 2009 MCQ

What is antisense technology?

A

RNA polymerase producing DNA

B

Production of somaclonal variants in tissue cultures

C

When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene

D

A cell displaying a foreign antigen used for synthesis of antigens

Question 69: Palette 69/82

NEET 2009 MCQ

Transgenic plants are the ones -

A

Produced after protoplast fusion in artifical medium

B

Produced by a somatic embryo in artificial medium

C

Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell

D

Grown in artificial medium after hybridization in the field

Question 70: Palette 70/82

NEET 2008 MCQ

Cry I endotoxins obtained from Bacillus thuringiensis are effective against:

A

Mosquitoes

B

Flies

C

Nematodes

D

Boll worms

Question 71: Palette 71/82

NEET 2008 MCQ

A transgenic food crop which may help in solving the problem of night blindness in developing countries is

A

Flavr Savr tomatoes

B

Bt soybean

C

Starlink maize.

D

Golden rice

Question 72: Palette 72/82

NEET 2008 MCQ

Human insulin is being commercially produced from a transgenic species of:

A

Escherichia

B

Mycobacterium

C

Rhizobium

D

Saccharomyces

Question 73: Palette 73/82

NEET 2008 MCQ

Main objective of production/use of herbicide resistant GM crops is to:

A

eliminate weeds from the field without the use of manual labour

B

eliminate weeds from the field without the use of herbicides

C

encourage eco-friendly herbicides

D

reduce herbicide accumulation in food articles for health safety

Question 74: Palette 74/82

NEET 2007 MCQ

A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of-

A

Trichoderma

B

Xanthomonas

C

Bacillus

D

Pseudomonas

Question 75: Palette 75/82

NEET 2006 MCQ

Golden rice is a promising transgenic crop. When released for cultivation, it will help in

A

Herbicide tolerance

B

Alleviation of vitamin A deficiency

C

Producing a petrol-like fuel from rice

D

Pest resistance

Question 76: Palette 76/82

NEET 2005 MCQ

Bacillus thuringiensis (Bt) strains have been used for designing novel -

A

Bio-metallurgical techniques

B

Biofertilizers

C

Bioinsecticidal plants

D

Bio-mineralization processes

Question 77: Palette 77/82

NEET 2005 MCQ

Golden rice is a transgenic crop of the future with the following improved trait -

A

High lysine (essential amino acid) content

B

High protein content

C

Insect resistance

D

High vitamin – A content

Question 78: Palette 78/82

NEET 2005 MCQ

Production of a human protein in bacteria by genetic engineering is possible because

A

The human chromosome can replicate in bacterial cell

B

The genetic code is universal

C

Bacterial cell can carry out the RNA splicing reactions

D

The mechanism of gene regulation is identical in humans and bacteria

Question 79: Palette 79/82

NEET 2004 MCQ

ELISA is used to detect viruses, wherethe key reagent is :-

A

Catalase

B

Southern

C

DNA probes

D

Alkaline phosphatase

Question 80: Palette 80/82

NEET 2004 MCQ

DNA fingerprinting refers to :-

A

Techniques used for molecular analysis of different specimens of DNA

B

Anlysis of DNA samples using imprinting devices

C

Molecular analysis of profiles of DNA samples

D

Techniques used for identification of fingerprints of individuals

Question 81: Palette 81/82

NEET 2004 MCQ

The Ti plasmid is often used for making transgenic plants. This plasmid is found in

A

Agrobacterium

B

Rhizobium of the roots of leguminous plants

C

Azotobacter

D

Yeast as a 2 µm plasmid

Question 82: Palette 82/82

NEET 2003 MCQ

ELISA is used to detect viruses, wherethe key reagent is :-

A

Alkaline phosphatase

B

Southern

C

DNA probes

D

Catalase