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Barr body in mammals represent...

Barr body in mammals represent

A

All the heterochromatin in female cells

B

One of the two X-chromosomes in somatic cells of females

C

All the heterochromatin in male and female cells

D

The Y chromosome in somatic cells of male

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The correct Answer is:
B
Barr body is nothing but 'X' chromosomes which has becomes heterochmatic, thus appera as deeply stained body . Of the two 'X' chromosomes are remains normal while the other appears as a Barr body .
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