Free Molecular Basis Of Inheritance (Daily Quiz: 13) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

The presence of an adapter molecule that would on one hand read the code and on other hand would bind to specific amino acids was postulated by

(a) James Watson

(b) Francis Crick

(c) Rosalind Franklin

(d) Griffith

Question-2

Why both the strands of DNA are not copied during transcription?

(a) Because RNA molecule with same sequences will be formed

(b) Because RNA molecule with different sequences will be formed

(c) Because RNA molecule with identical sequences will be formed

(d) Because DNA molecule with different sequences will be formed

Question-3

Choose the correct option.

(a) Pyrimidines include cytosine, uracil and thymine

(b) Pyrimidines include adenine and guanine

(c) Purines include adenine and thymine

(d) Purines include guanine and cytosine

Question-4

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-33%; T-33%

(b) G-17%; A-16.5%; T-32.5%

(c) G-8.5%; A-50%; T-24.5%

(d) G-34%; A-24.5%; T-24.5%

Question-5

The one aspect which is not a salient feature of genetic code, is its being:

(a) ambiguous

(b) degenerate

(c) universal

(d) specific