Question

A part of an mRNA has the sequence AAA. Use the table below to figure out which amino acid is coded for AAA, then use the table to figure out which change to this sequence would indicate a silent mutation.

Answer 1

Answer:

Lysine and AAG

Explanation:

AAA in the table codes for AAA, which is Lysine. Also, AAG also codes for Lysine, which would be a silent mutation.

Answer 2

Answer:

Lysine and AAG

Explanation:

A mutation that does not cause any change in the amino acids and hence have no effect on the function of the protein is called as silent mutation. The given codon "AAA" codes for amino acid "Lysine". Lysine is also encoded by genetic code  "AAG".

Hence, any mutation that changes the mRNA sequence "AAA" to "AAG" would cause silent mutation.