Why is there NOT a one-to-one correlation between the genetic code and amino acids?
A) Because there are 20 amino acids but only 4 nucleotide bases.
B) Because the genetic code includes uracil in mRNA.
C) Because not all proteins contain all amino acids.
D) Because unlike DNA, there are not equal proportions of some amino acids to others.
E) Because transcription occurs inside the nucleus, whereas translation occurs in the cytoplasm.

Question

Quizplus · Accepted Answer

The genetic code is composed of combinations of 4 nucleotide bases (adenine, cytosine, guanine, and thymine in DNA; uracil replaces thymine in RNA) that code for 20 different amino acids. This discrepancy in numbers means that the code is degenerate; multiple codons can code for the same amino acid, preventing a one-to-one correlation.

Why Is There NOT a One-To-One Correlation Between the Genetic