Question

Which one of the following group of codons is called as degenerate codons?

Options

• UAA, UAG and UGA

• GUA, GUG, GCA, GCG and GAA

• UUC, UUG, CCU, CAA and CUG

• UUA, UUG, CUU, CUC, CUA

• AAC, AAG, GAC and CGG

Answer 1

UUA, UUG, CUU, CUC, CUA

Explanation:

UUA, UUG, CUU, CUC and CUA all code for leucine, illustrating that one amino acid can have multiple codons. UAA, UAG and UGA are stop codons.