The given diagram $A$ and $B$ indicates:

If an albino man marries a normal woman and $50$ offspring are albino and $50$ are normal,the woman is:

Describe Mendelian disorders.

Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albino (in $\%$)?

More men suffer from colour blindness than women because

Sickle-cell anaemia happens due to $A$ mutation in which $B$ of haemoglobin is affected. Fill the correct option for $A$ and $B$.