Assertion(A): RNA is reactive.
Reason(R): RNA is catalytic in nature.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  DNA vs RNA as Genetic Material |
 50%
From NCERT
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Assertion(A): RNA can easily express the characters.
Reason(R): RNA can directly code for the synthesis of proteins.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  DNA vs RNA as Genetic Material |
 75%
From NCERT
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Assertion(A): RNA is unstable.
Reason(R): RNA is reactive being a catalyst.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  DNA vs RNA as Genetic Material |
 71%
From NCERT
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Assertion(A): One segment of the DNA codes for two different proteins.
Reason(R): This would complicate the genetic information transfer machinery.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  DNA Double Helix |
 54%
From NCERT
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Assertion(A): Primary transcript is subjected to a process called splicing.
Reason(R): Introns are functional.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Transcription |
 86%
From NCERT
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Assertion(A): Replication and transcription are easy to conceptualize on the basis of complementarity.
Reason(R): During these processes, nucleic acid was copied to form another nucleic acid on the basis of complementarity.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  DNA Double Helix |
 79%
From NCERT
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Assertion(A): 3 codons do not code for any amino acids.
Reason(R): They function as stop codons.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Genetic Code |
From NCERT
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Assertion(A): Insertion or deletion of three or its multiple bases insert or delete in one or multiple codon.
Reason(R): In this case, the reading frame gets altered.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Mutations and Genetic Code |
 61%
From NCERT
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Assertion(A): It is the metabolic, physiological, or environmental conditions that regulate the expression of genes.
Reason(R): if the bacteria do not have lactose, they would no longer require the synthesis of the enzyme beta-galactosidase.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Gene Regulation: Lac Operon |
 59%
From NCERT
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Assertion(A): Only two structural gene products in lac operon are required for metabolism of lactose.
Reason(R): The y gene codes for  permease, which increases permeability of the cell to b-galactosides.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Gene Regulation: Lac Operon |
 78%
From NCERT
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