AP BIOLOGY

HEREDITY

MUTATIONS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What type of chromosomal mutation removes genes and then re-attaches the genes backwards?

A	Duplication
B	Inversion
C	Deletion
D	Translocation

Explanation:

Detailed explanation-1: -Inversions. An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome.

Detailed explanation-2: -A chromosomal defect in which a segment of the chromosome breaks off and reattaches in the reverse direction.

Detailed explanation-3: -Inversion: When a segment of DNA is flipped and then reattached to the same chromosome. Insertion: When a segment of DNA from one chromosome is added to another, unrelated chromosome. Translocation: When two segments from different chromosomes change positions.

Detailed explanation-4: -Inversion – when a segment of a chromosome? is reversed end to end.

Detailed explanation-5: -An inversion changes more than one nucleotide in a gene by replacing the original sequence with the same sequence in reverse order.

There is 1 question to complete.