AP BIOLOGY

Detailed explanation-1: -The four main types of structural chromosomal aberrations are deletion, duplication, inversion, and translocation.

Detailed explanation-2: -Aneuploidy. This mutation either causes the loss or addition of a chromosome by the contortion of the chromosome set. Nondisjunction during meiosis or mitosis usually results in this mutation.

Detailed explanation-3: -There are 5 types of chromosomal alterations: deletions, duplications, insertions, inversions, and translocations. Point mutations occur at a single site within the DNA; examples of these include silent mutations, missense mutations, and nonsense mutations.

Detailed explanation-4: -Frameshift mutation is not a chromosomal mutation instead it is a genetic mutation in which the reading frame of DNA shifts due to addition or removal of gene.