Molecular Basis of Inheritance Question 106
106. The number of base substitution possible in amino acid codons is
(a) 261
(b) 264
(c) 535
(d) 549
Show Answer
Answer : d
Hints & Solution
(d) Codons are 64 in number. Out of this, 61 codes for amino acids. Each codon possesses 3 bases, each of which can undergo transition and transversion. $(61 \times 3^{2}=549)$
