NEET2015Botany-Molecular Basis of Inheritance

NEET 2015 Botany DNA Structure MCQ Question

Type: MCQ-numerical-Hard-Class 12

In Sea Urchin DNA, which is double stranded 17% of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are

A

G 17%, A 16.5%, T 32.5%

B

G 17%, A 33%, T 33%

C

G 8.5%, A 50%, T 24.5%

D

G 34%, A 24.5%, T 24.5%

Correct Answer

Option B

Detailed Explanation

Since cytosine pairs with guanine, they must be equal in percentage. Adenine and thymine together make up the rest.

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