If a female individual has a small round head,furrowed tongue,partially open mouth,and a broad palm with a characteristic palm crease,and also exhibits retarded physical,psychomotor,and mental development,the karyotype analysis of such an individual will show:

Which disorder is caused by the loss of one $X$ chromosome in females?

Which pair of chromosomes is concerned with Down's syndrome?

Which of the following statements are correct about Klinefelter's Syndrome?
$A$. This disorder was first described by Langdon Down $(1866)$.
$B$. Such an individual has overall masculine development. However,the feminine development is also expressed.
$C$. The affected individual is short statured.
$D$. Physical,psychomotor and mental development is retarded.
$E$. Such individuals are sterile.
Choose the correct answer from the options given below:

In Turner syndrome,a female has:

Physical,psychomotor,and mental development is retarded in an individual affected with