Question

how many codons comprise the genetic code?
a 64
b 46
c 3
d 20

Explanation:

In genetics, a codon is a sequence of three nucleotides. There are 4 types of nucleotides (A, U, C, G). The total number of possible codons is calculated by \(4\times4\times4 = 64\) (since each position in the codon can have 4 choices). These 64 codons include start codons (e.g., AUG) and stop codons (e.g., UAA, UAG, UGA) along with codons for amino acids.

Answer:

A. 64