Acertain mutation in the human chromosome number 9 causes part of the chromosome to break and reattach itself in a reverse manner. what kind of mutation is this?
a. chromosomal duplication
b. chromosomal inversion
c. chromosomal deletion

A certain mutation in the human chromosome number 9 that causes part of the chromosome to break and reattach itself in a reverse manner is b. chromosomal inversion. Inversion is a type of mutations in which chromosome segment is inverted end to end. So, there is no change in nucleotide number (no deletions or additions) but chromosomal rearrangement.

Wikipedia aswell can be used to solve the following questions