What does it mean when we say the genetic code is redundant?
A) A single codon can specify the addition of more than one amino acid.
B) The genetic code is different for different domains of organisms.
C) The genetic code is universal (the same for all organisms).
D) More than one codon can specify the addition of the same amino acid.

Question

Quizplus · Accepted Answer

The genetic code is redundant because more than one codon can specify the addition of the same amino acid. For example, the codons GCU, GCC, GCA, and GCG all code for the amino acid alanine. This redundancy allows for some flexibility in the genetic code and reduces the impact of certain mutations that may occur.

What Does It Mean When We Say the Genetic Code