Botany-Genetic Code
NEET Botany Genetic Code Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 12
Assertion (A): Insertion or deletion of a single nucleotide in the genetic code results in a frameshift mutation. | Reason (R): Frameshift mutations occur when three or multiples of three nucleotides are inserted or deleted from the genetic code, maintaining the reading frame.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option C
Detailed Explanation
Insertion or deletion of a single nucleotide causes a frameshift mutation by shifting the reading frame, whereas inserting or deleting three nucleotides does not affect the reading frame. Hence, R is false.
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