Which of the following is not a genetic disorder?

Which of the following diseases results from the genetic inability to synthesize a single enzyme?

Which of the following is a Mendelian disorder?

Identify the genetic disorders based on the following characteristics:
$(i)$ Presence of sickle-shaped $RBC$.
$(ii)$ Blood does not clot,leading to non-stop bleeding.
$(iii)$ The heterozygous female transmits the disease to sons.
$(iv)$ Both heterozygous parents transmit the disease to offspring.

In the following human pedigree,the filled symbols represent the affected individuals. Identify the type of given pedigree.

Identify the given figure and select the correct option for $P, Q, R$ and $S$.
$\quad P \quad Q \quad R \quad S$