Question

what does a deletion mutation cause?
insertion
frameshift
inversion

Explanation:

A deletion mutation involves the removal of one or more nucleotide bases from a DNA sequence. A frameshift mutation occurs when the number of nucleotides inserted or deleted is not a multiple of three, which shifts the reading frame of the genetic code. Deletion (when not a multiple of three) causes frameshift. Insertion is adding nucleotides, and inversion is reversing a segment, so they are not caused by deletion.

Answer:

B. frameshift (assuming the options are labeled as A. insertion, B. frameshift, C. inversion)