$A$ : Turner's syndrome generally does not occur in males.
$R$ : Foetus with $44 + YO$ complement generally dies.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Define aneuploidy. How is it different from polyploidy ? Describe the individualsm having the following chromosomal abnormalities.
$(a)$ Trisomy of $21^{st}$ chromosome
$(b)$ $XXY$
$(c)$ $XO$
In human, which disorder is cussed due to the absence of one of the $X$ chromosomes i.e., $45$ with $XO$ ?
Physical, psychomotor and mental development is retarted in an individual affected with
$XO-$ chromosomal abnormality in human beings causes
In Klinefelter's syndrome, what is generally the set of sex chromosome