An abnormal male child is born to normal parents. This child shows a short neck,stubby hands,slanting eyes,a permanently open mouth with a projecting upper lip,and short stature. This abnormality can be attributed to:

  • A
    An extra $Y$ chromosome
  • B
    An extra $X$ chromosome
  • C
    An extra chromosome in the $21^{st}$ pair of autosomes
  • D
    Absence of $X$ chromosome leading to a total of $45$ chromosomes instead of the normal $46$

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Similar Questions

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

Match List-$I$ with List-$II$ : Choose the correct answer from the options given below :
List-$I$List-$II$
$A.$ Down's syndrome$I.$ $11^{th}$ chromosome
$B.$ $\alpha$-Thalassemia$II.$ $X$ chromosome
$C.$ $\beta$-Thalassemia$III.$ $21^{st}$ chromosome
$D.$ Klinefelter's syndrome$IV.$ $16^{th}$ chromosome

In Klinefelter syndrome . . . . . . .

In man,which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes?

The mechanism that causes a gene to move from one linkage group to another is called

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