AP BIOLOGY

HEREDITY

SEX LINKAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens in an inversion mutation?
A
The DNA sequences is repeated
B
Nucleotides get deleted
C
A section of the chromosome gets flipped
D
a piece of the chromosome is lost
Explanation: 

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: -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: -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.

Detailed explanation-4: -What happens in an inversion? Sometimes a chromosome breaks in two places and the broken piece rejoins the same chromosome, but upside down. This is called a chromosome inversion.

Detailed explanation-5: -A temperature inversion is a layer in the atmosphere in which air temperature increases with height. An inversion is present in the lower part of a cap.

There is 1 question to complete.