One possible result of chromosomal breakage can be that a fragment reattaches to the original chromosome in a reverse orientation. This is called .....

GENE MUTATION

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

One possible result of chromosomal breakage can be that a fragment reattaches to the original chromosome in a reverse orientation. This is called ____

A	deletion.
B	inversion
C	disjunction
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: -One possible result of chromosomal breakage is for a fragment from one chromosome to join a nonhomologous chromosome.

Detailed explanation-3: -A reciprocal translocation arises from an exchange of fragments between the ends of nonhomologous chromosomes.

Detailed explanation-4: -A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome. Sometimes pieces from two different chromosomes will trade places with each other.

There is 1 question to complete.

AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

GENE MUTATION