What type of mutation results in a single amino acid substitution?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science