Question

What do we call a point mutation in which a single base pair is inserted or deleted from DNA?

1) Substitution mutation
2) Insertion mutation
3) Deletion mutation
4) Frameshift mutation

Answer 1

A frameshift mutation is a point mutation in which a single base pair is inserted or deleted from DNA, causing a shift in the reading frame of the DNA sequence.

Step-by-step explanation:

A point mutation in which a single base pair is inserted or deleted from DNA is called a frameshift mutation. This type of mutation occurs when the reading frame of the DNA sequence is altered, causing a shift in the way codons are read. Insertions or deletions of a single base pair can result in a frameshift mutation, which can have significant effects on the synthesized protein.