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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

Text Solution

Verified by Experts

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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Knowledge Check

  • Barr bodies are

    A
    Chromatin negative
    B
    Not influnced by stains
    C
    Chromatin positive
    D
    Poorly staining

  • There will be no Barr body in female suffereing from :-

    A
    Turner syndrome
    B
    Kleinfelter syndrome
    C
    Down syndome
    D
    Haemophilia

  • Barr body is absent in

    A
    Klinefelter's syndrome
    B
    Turner's syndrome
    C
    Normal female
    D
    Down syndrome in female

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