How many codons are possible in a cell?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The genetic code is composed of triplets of nucleotides,known as codons.Since there are $4$ types of nitrogenous bases $(A, U, G, C)$ in $RNA$,and

Vedclass · Accepted Answer

$64$

Vedclass · Answer

(D) The genetic code is composed of triplets of nucleotides,known as codons.Since there are $4$ types of nitrogenous bases $(A, U, G, C)$ in $RNA$,and each codon consists of $3$ bases,the total number of possible combinations is $4^3 = 4 	imes 4 	imes 4 = 64$.Out of these $64$ codons,$61$ code for amino acids,and $3$ are stop codons (nonsense codons) that do not code for any amino acid.Therefore,the total number of possible codons is $64$.

Similar Questions

Which of the following pairs is correctly matched with respect to the codon and the amino acid it codes for?

What role does messenger $RNA$ play in the synthesis of proteins?

The $m-RNA$ contains ........... codons.

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?

Which of the following triplet codons correctly represents a start or stop signal for protein synthesis?

Vedclass Test Series

Exam Paper Generator

Online Exam Module