Absence or excess or abnormal arrangement of one or more chromosomes results in

$A$ chromosome complement with $2n-1$ is called as:

Epicanthus is a symptom of:

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

Find the incorrect statement among the following:

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: