AP BIOLOGY

Detailed explanation-1: -There are two types of point mutations: transition mutations and transversion mutations.

Detailed explanation-2: -Types of Point Mutations. We are going to focus on the following point mutations: frameshift, silent, nonsense, and missense. Let’s start with a frameshift mutation, where there’s an insertion or deletion of one or more bases.

Detailed explanation-3: -A point mutation is where you change one base in the DNA to another. A missense mutation occurs when that point mutation causes a different amino acid to be placed from that codon. Because multiple codons code for the same amino acid, not all point mutations will cause a missense mutation.

Detailed explanation-4: -Mutation in single nucleotide base of a DNA segment is called as point mutation.

Detailed explanation-5: -Different blood disorders such as ß-thalassemia, sickle cell disease, hereditary spherocytosis, Fanconi anemia, and Hemophilia A and B are usually caused by point mutations.