AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which chromosomal mutation “flips” a portion of the chromosome causing the sections not to match up?
A
insertion
B
deletion
C
invertion
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. Genetic material may or may not be lost as a result of the chromosome breaks.

Detailed explanation-2: -Inversion events can produce hybrid genes that have varying portions of two genes, not necessarily half and half. However, inversion events can connect half of a gene with a region of DNA that has no genes. The result would be a broken gene.

Detailed explanation-3: -Inversion – when a segment of a chromosome? is reversed end to end.

Detailed explanation-4: -Inversions are a special type of mutation in which a piece of chromosomal DNA is flipped 180 degrees. For an inversion to occur, two breaks occur in a chromosome, the region between the breaks gets inverted, and the ends of the region get rejoined to the rest of the chromosome.

There is 1 question to complete.