Question

Unlike trisomy for autosomes, trisomy X is often without serious phenotypic consequences. This is due to the fact that the additional X chromosome is converted to a(n) _____ _____ in the somatic cells of the adult.

Answer 1

Trisomy X, or Triplo-X, occurs when a female has three X chromosomes instead of two. To compensate for the extra X chromosome, one X chromosome is randomly inactivated in each cell of the embryo. This process, called X inactivation, helps to prevent serious phenotypic consequences in individuals with Trisomy X.

Step-by-step explanation:

Trisomy X, also known as Triplo-X, refers to the condition in which a female has three X chromosomes instead of the usual two. In normal development, one X chromosome in each cell of the female embryo is randomly inactivated. This inactivation process results in the formation of a Barr body, a condensed and dormant structure.

The inactivation of one of the X chromosomes helps to balance the genetic dosage in females and prevents serious phenotypic consequences.