Botany-Transcription
NEET Botany Transcription MCQ Question
Type: MCQ-numerical-Medium-Class 12
During transcription, if RNA polymerase transcribes a gene of 1500 nucleotides, and the processed mRNA has a poly-A tail of 250 adenylate residues, how many nucleotides does the mature mRNA contain?
A
1500
B
1750
C
1250
D
250
Correct Answer
Option B
Detailed Explanation
The mature mRNA includes the original 1500 nucleotides transcribed by RNA polymerase plus an additional 250 adenylate residues added during tailing, resulting in a total of 1750 nucleotides.
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