Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-numerical-Hard-Class 12
If the DNA length of a bacteriophage is defined by the number of nucleotides it contains, and given that a bacteriophage known as φ×174 has 5386 nucleotides, what would be the number of base pairs in its DNA assuming it is double-stranded?
A
2693 base pairs
B
5386 base pairs
C
10772 base pairs
D
13465 base pairs
Correct Answer
Option A
Detailed Explanation
A double-stranded DNA molecule has two complementary strands, hence the number of base pairs is half the number of nucleotides. Therefore, 5386 nucleotides result in 2693 base pairs.
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