The number of chromosomes in Turner's syndrome is
$45$
$43$
$44$
$42$
Find out correct pair.
An abnormal male child is born to normal parents. This child shows a short neck, stubby hands, slanting eyes, permanently open mouth with projecting upper lip and short stature. This abnormality can be attributed to
Define aneuploidy. How is it different from polyploidy ? Describe the individualsm having the following chromosomal abnormalities.
$(a)$ Trisomy of $21^{st}$ chromosome
$(b)$ $XXY$
$(c)$ $XO$
What would be the number of chromosomes in the ovum (fertilized by a normal sperm) that resulted in the appearance of Klinefelter's syndrome in the offspring
The genotype of a boy having sexual characters of a girl is