What is a Barr body, and where is it found in a cell? b) Define the Lyon hypothesis.

Biology

1 answer:

rewona [7]3 years ago

5 0

Answer:

Barr body may be defined as the one of the inactive X chromsome of the human female. The human female consists of XX chromosome whereas XY in male. To compensate the extra X chromosome in female one of the X chromosome become inactive and known as barr body. The barr body is found in the somatic cells.

Lyon hypothesis:

Lyon hypothesis states that dosage compensation occur in human females by the random inactivation of one of the X chromosome. The inactivated X chromosome is named as barr body. The lyon hypothesis was given by Mary Lyon.

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