AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What point mutation adds one base?
A
Substitution
B
Deletion
C
Insertion
Explanation: 

Detailed explanation-1: -With one or two bases added or deleted, all of the three-base codons change. This is called a frameshift mutation.

Detailed explanation-2: -Definition. A point mutation occurs in a genome when a single base pair is added, deleted or changed.

Detailed explanation-3: -Some scientists recognize another type of mutation, called a frameshift mutation, as a type of point mutation. Frameshift mutations can lead to drastic loss of function and occur through the addition or deletion of one or more DNA bases.

Detailed explanation-4: -An insertion, as related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA. An insertion can involve the addition of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.

Detailed explanation-5: -Point mutations refer to changes in the sequence of DNA bases, and include substitutions, insertions, and deletions of one or more bases.

There is 1 question to complete.