Botany-Genetic Code
NEET Botany Genetic Code MCQ Question
Type: MCQ-conceptual-Medium-Class 12
How many codons would remain unchanged in a sequence if three nucleotides are inserted in a DNA strand, assuming the insertion does not occur at the end of the sequence?
A
All codons after the insertion point
B
One codon
C
All codons remain unchanged
D
None, all are affected
Correct Answer
Option C
Detailed Explanation
Inserting three nucleotides adds a whole new codon, thus the reading frame downstream remains unchanged.
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