Question

A sequence of bases in a particular gene is normally

A A T G T A C C C

But a point mutation changed this to

A T G T A C C C G

Determine which type of mutation this is and explain how you know.

Answer 1

Deletion

Step-by-step explanation:

This mutation deleted one of the nucleotide bases in the sequence, resulting in a shifted reading frame and throwing the rest of the DNA sequence off by one point. You can tell that the mutation is a deletion because one of the A bases in the first sequence is missing.