Question

A diagram of a mutation is illustrated.

image

The type of mutation illustrated is called

A.
an insertion mutation.

B.
a deletion mutation.

C.
a point mutation.

D.
an inversion mutation.

Answer 1

D. an inversion mutation.

The diagram shows a segment of the chromosome reversed in orientation (the segment is flipped and reinserted). An inversion flips a block of DNA within the chromosome. Insertions add extra sequence, deletions remove sequence, and point mutations change a single base — none of which match a flipped segment.