The Lyon hypothesis deals with:

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The Lyon hypothesis,proposed by Mary Lyon,states that in female mammals,one of the two $X$ chromosomes in each somatic cell is randomly inactivate

Vedclass · Accepted Answer

Number of Barr bodies

Vedclass · Answer

(D) The Lyon hypothesis,proposed by Mary Lyon,states that in female mammals,one of the two $X$ chromosomes in each somatic cell is randomly inactivated during early embryonic development.This inactivated $X$ chromosome becomes highly condensed and is visible as a dense,dark-staining body in the nucleus,known as a Barr body.Therefore,the Lyon hypothesis explains the mechanism of dosage compensation in mammals by relating the number of $X$ chromosomes to the number of Barr bodies present in the cell.

Similar Questions

In honey bees, the drones $(males)$ are produced from:

Which of the following conditions correctly describes the manner of determining the sex in the given example?

In which of the following is the male monosomic $(XO)$?

Which of the following characteristics is shown by a gene located on the $X$-chromosome in males?

Allosomes are responsible for . . . . . . .

Vedclass Test Series

Exam Paper Generator

Online Exam Module