If the somatic cells of a male contain one Ba | vedclass

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Question

(B) The number of Barr bodies in a cell is calculated using the formula $N = n - 1$,where $N$ is the number of Barr bodies and $n$ is the total number

Vedclass · Accepted Answer

$XXY$

Vedclass · Answer

(B) The number of Barr bodies in a cell is calculated using the formula $N = n - 1$,where $N$ is the number of Barr bodies and $n$ is the total number of $X$ chromosomes.Given that the male has one Barr body $(N = 1)$,we can substitute this into the formula: $1 = n - 1$,which gives $n = 2$.This means the individual has two $X$ chromosomes.Since the individual is male,the presence of a $Y$ chromosome is mandatory.Therefore,the genetic constitution is $XXY$,which is characteristic of Klinefelter syndrome.

Column-$I$ (Disorder)	Column-$II$ (Ploidy)
$P$. Down's syndrome	$I$. Sex chromosomal trisomy
$Q$. Klinefelter's syndrome	$II$. Sex chromosomal monosomy
$R$. Turner's syndrome	$III$. Autosomal trisomy

If the somatic cells of a male contain one Barr body,what would be their genetic constitution?

Similar Questions

The given figure represents which disorder?

Match the following columns:

Column-$I$ (Disorder) Column-$II$ (Ploidy)

$P$. Down's syndrome $I$. Sex chromosomal trisomy

$Q$. Klinefelter's syndrome $II$. Sex chromosomal monosomy

$R$. Turner's syndrome $III$. Autosomal trisomy

In Klinefelter's syndrome,what is generally the set of sex chromosomes?

Who reported that Down's syndrome is due to an extra $21^{st}$ chromosome?

$A$: Turner's syndrome generally does not occur in males.
$R$: Foetus with $44 + YO$ complement generally dies.

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