What dosage compensation mechanism is employed by female placental mammals?

X- Inactivation

Explanation:

Dosage  mechanism happy when organism equalize the expression of genes. In mammal females have two chromosomes (X, Y) while in males there are only one chromosome represented with , (X). These determine sex of the offspring.

X-inactivation

Explanation:

X-inactivation also called lyonization by( Mary F lyon) is a random process that happens separately in individual cells during an early embryonic stage in development by a dosage compensation whereby somatic cells have one X-chromosome inactivated. This change that occurs with X inactivation can be related to non-genetic influence, can be inherited not changing in the sequence of the DNA.

X inactivation does not occur in females alone but also males with Klinefelter syndrome who have more than one X chromosome.

its b i just took the test and i hit a it was wrong