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 pH of the insect gut.

In the light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are False
2. Statement I is True but Statement II is False
3. Statement I is False but Statement II is True
4. Both Statement I and Statement II are True
Subtopic:  Bt Crops |
 60%
From NCERT
NEET - 2024
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The capacity to generate a whole plant from any cell of the plant is called:
1. Micropropagation
2. Differentiation
3. Somatic hybridization
4. Totipotency
Subtopic:  Plant Tissue Culture |
 79%
From NCERT
NEET - 2024
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Which of the following are fused in somatic hybridization involving two varieties of plants?
1. Somatic embryos
2. Protoplasts
3. Pollens
4. Callus
Subtopic:  Plant Tissue Culture |
 72%
From NCERT
NEET - 2024
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Match List I with List II: 
List I List II
A.  \(\alpha-1\) 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 from the options given below:
1. A-III, B-I, C-II, D-IV
2. A-III, B-IV, C-I, D-II
3. A-II, B-IV, C-I, D-III
4. A-II, B-I, C-IV, D-III
Subtopic:  Intro to Agri Applications | Bt Crops | Gene Therapy |
 85%
From NCERT
NEET - 2024
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Given below are two statements:
Statement I: Two DNA sequences were prepared corresponding to A and B, chains of human insulin and were introduced in the plasmids of Agrobacterium to produce insulin chain.
Statement II: Chain A and B were produced separately, extracted and combined by creating disulphide bonds to form human insulin.
In light of the above statements, choose the correct answer from the options given below.
1. Both Statement I and Statement II are true 
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic:  Med Applications & Humulin |
 57%
From NCERT
NEET - 2024
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Important objective of biotechnology in agriculture is to:
1. produce pest resistant varieties of plant.
2. increase nitrogen content in plant.
3. decrease the seed number.
4. increase the plant weight.
Subtopic:  Intro to Agri Applications |
 84%
From NCERT
NEET - 2024
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Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R). 
Assertion (A): Some ethical standards are required to evaluate the morality of scientific human activities that might help or harm living organisms.
Reason (R): Genetic Engineering Approval Committee make decisions regarding the validity of Genetically Modified (GM) research and the safety of introducing GM organisms for public services.
In light of the above statements, choose the most appropriate answer from the options given below : 
1. Both (A) and (R) are correct and (R) is the correct explanation of (A).
2. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
3. (A) is correct but (R) is not correct 
4. (A) is not correct but (R) is correct. 
Subtopic:  Ethical Issues |
From NCERT
NEET - 2024
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Bt toxin protein that can kill many insects, doesn't kill the Bacillus because:
1. Bt toxin requires acidic pH for activation
2. Bacillus has protective mechanism against it 
3. In Bacillus, it is present in an inactive state and once insects ingests it, it is converted to active form
4. The protoxin requires protein conjugate for its activation
Subtopic:  Bt Crops |
 81%
From NCERT
NEET - 2024
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Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?
1. Enzyme Linked Immuno-Sorbent Assay (ELISA) technique
2. Recombinant DNA Technology
3. Serum and Urine analysis
4. Polymerase Chain Reaction (PCR) technique
Subtopic:  Molecular Diagnosis |
 78%
From NCERT
NEET - 2023
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Select incorrect statement, regarding chemical structure of insulin:
1. Mature insulin molecule consists of three polypeptide chains - A, B and C.
2. Insulin is synthesized as prohormone which contains extra stretch of C-peptide.
3. C-peptide is not present in mature insulin molecule.
4. Polypeptide chains A and B are linked to disulphide bridges.
Subtopic:  Med Applications & Humulin |
 85%
From NCERT
NEET - 2023
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