question_answer

Assertion : A parasitic disease elephantiasis can be identified with enormous growth in different body parts specially in limbs. Reason : Elephantiasis is caused by the excess secretion of growth hormone.

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion 

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

E) If the assertion is false but reason is true

Correct Answer: C

Solution :

Filarial worms bancrofti) live in the lymphatic system of man, where, they costruct the flow of lymph, causing a condition known as elephantiasis. In which the limbs or other lymph glands and lymph passages grow to enormous size. Due to lymphatic obstruction, lymph cannot get back into circulatory system, accumulates into organs and causes them to swell or enlarge to fantastic proportions (lymphodema). In servere cases, abnormal connective tissue from in the affected areas to further complicate the situation. Excess secretion of growth hormone (secreted by anterior pituitary) leads to gigantism.