Principle Of Inheritance And Variation Question 339

Question: A polypeptide is produced as dictated by mRNA, the number of bases on the mRNA that code for the polypeptide portion containing N-terminal amino acid and next 13 amino acid is

Options:

A) 26

B) 36

C) 42

D) 39

Show Answer

Answer:

Correct Answer: C

Solution:

One amino acid is coded by triplet base (3 bases) so for 13 amino acids 13 × 3 = 39 bases are required and 3 bases are required for the formation of N terminal amino acid from methionine.

Hence total 39 + 3 = 42 bases are required.