The genetic code operates on all the following principles except
A)all four of the nucleotide bases must be used.
B)each combination of any three nucleotides can act as a codon.
C)the first nucleotide in every codon is always the same.
D)a particular codon always specifies the same amino aciD.

Question

Quizplus · Accepted Answer

The genetic code is based on the principle that each codon (a sequence of three nucleotides) specifies a particular amino acid. However, the first nucleotide in every codon can vary between U (uracil), C (cytosine), A (adenine), and G (guanine). This means that the genetic code is not always consistent in the identity of the first base in a codon. Therefore, choice C is the correct answer.

The Genetic Code Operates on All the Following Principles Except