Principle of Inheritance and VariationHard
Question
Barr body in mammals represents
Options
A.all the heterochromatin in female cells
B.Y-chromosomes in somatic cells of male
C.all heterochromatin in malce and female cells
D.one of the two X-chromosomes in somatic cells of females
Solution
Sex chromatin body was discovered by the Canadian geneticists Murray L Barr and E G Bertram (1949)
Barr body is a highly conensed structre lies against the nuclear membrane of the interphase cells of females.
According to the British geneticist (1961), one of the two X-chromosomes of a normal female becomes neterochromatic and appears as Barr body.
Barr body is a highly conensed structre lies against the nuclear membrane of the interphase cells of females.
According to the British geneticist (1961), one of the two X-chromosomes of a normal female becomes neterochromatic and appears as Barr body.
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