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Suppose evolution on earth has occurred ...

Suppose evolution on earth has occurred in such a way that there are 96 amino acids instead of 20. DNA has 12 different types of bases and DNA synthesis occur in the same way as today. The minimum number of bases per DNA codon would be `:`

A

12

B

8

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
If one base is coding one amino acid, then `(12)^(1)=12` but we have 96 amino acids. Suppose two bases form one codon, then `(12)^(12)=144`. It is sufficient to code 96 or 20 amino acids and hence two, bases form one codon.
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