Question

AGCGTACCCTAC Ser Val Pro Tyr AcceTẠAccTÁC Val Thr Tyr Ser Identify the type of mutation illustrated in the image above. Select the correct answer below: O missense mutation O nonsense mutation O frameshift mutation silent mutation o 3 a hp bitse & 7 8 9 5 6 O [ P O 2 Т. Y Н. K L

Answer 1

In the given mutation,

1 C has changed to an A. When only one base bas changed, the type of mutation is a point mutation.

Among point mutations, the different types are :

(A) missense mutation - the mutation changes the resulting amino acid.

( B) nonsense mutation - the mutation creates a stop codon.

( C) silent mutation - there is no change in the resulting amino acid due to the mutation.

In contrast, frameshift mutations change more than 1 base. The number of changed bases is not divisible by 3. Since 3 bases = 1 amino acid, this mutation changes the frame of reading for all subsequent amino acids. Hence.

From the above info, the given mutation is a missense mutation, since it's the mutation of only one base which leads to forming a new amino acid.