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

Gynaecomastia condition can develop due to

Polytene chromosomes in salivary glands of are formed as a result of

Assertion : Persons suffering from haemophilia fail to produce blood clotting factor $VIII$.

Reason : Prothrombin producing platelets in such persons are found in very low concentration.

At what temperature the blood is stored in bottles

Improvement of human race by improving the environment is called