Zoology-Genetic Engineering
NEET Zoology Genetic Engineering MCQ Question
Type: MCQ-numerical-Medium-Class 12
If a segment of DNA is amplified using the PCR technique and each cycle of PCR doubles the amount of DNA, how many cycles are needed to amplify the DNA approximately 1 billion times?
A
30 cycles
B
20 cycles
C
10 cycles
D
40 cycles
Correct Answer
Option A
Detailed Explanation
Each cycle of PCR doubles the DNA, so 2^n = 1 billion. Solving for n gives n ≈ 30 cycles.
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