Foetal sex can be determined by examining cel | vedclass

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(A) Amniotic fluid contains foetal cells that can be examined to determine the presence of sex chromatin,known as $Barr$ bodies.The presence of a $Bar

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Barr bodies

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(A) Amniotic fluid contains foetal cells that can be examined to determine the presence of sex chromatin,known as $Barr$ bodies.The presence of a $Barr$ body indicates that the developing foetus is female,as it possesses two $X$ chromosomes ($XX$ genotype),where one $X$ chromosome is inactivated and condensed into a $Barr$ body.Male foetuses ($XY$ genotype) do not possess $Barr$ bodies.

Foetal sex can be determined by examining cells from the amniotic fluid by looking for

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