AP BIOLOGY

Detailed explanation-1: -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: -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.

Detailed explanation-3: -If the broken off fragment reverses its orientation and reattaches to the same position on the original chromosome, this is called a chromosomal inversion.

Detailed explanation-4: -"If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the reverse direction, the resulting chromosomal abnormality is called a translocation."

Detailed explanation-5: -Definition. An inversion in a chromosome occurs when a segment breaks off and reattaches within the same chromosome, but in reverse orientation. DNA may or may not be lost in the process.