Turner’s syndrome is an example of:

When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs,the condition is known as . . . . . .

Loss of a $X$ chromosome in a particular cell during its development results in:

$A$ male individual with $47$ chromosomes due to the addition of an $X$ chromosome suffers from a condition called:

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:

If a person has $45$ chromosomes with $XO$ chromosomal abnormality,then it is considered as which disorder?