Home
Class 12
BIOLOGY
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.
Promotional Banner

Topper's Solved these Questions

  • MINERAL NUTRITION

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|386 Videos

  • Monera

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|14 Videos

Similar Questions

Explore conceptually related problems

On a planet from a distant galaxy, the pilot vehicle collected a sample of bacteria-like material. On analysis, it showed proteins having 30 types of mino acids while the DNA has 6 types of bases. In the genetic code, a sequence of how many bases should be serving as a codon?

A polypeptide has the following amino acid sequence Met-Ser-Pro-Arg-Leu-Glu-Gly In a mutant the amino acid sequence of this polypeptide was found to be Met-Ser-Ser-Arg-Leu-Glu-Gly What is the type of mutation that occurred in the reading frame of its DNA?

A homopolymer has only one type of building block called monomer repeated 'n' number of times. A heteropolymer has more than one type of monomer. Proteins are heteropolymers made of amino acids. While a nucleic acid like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of