Question

During growth Ascaris undergoes moulting in the body of host for

• A. Two times
• B. Six times
• C. Five times
• D. Four times

Answer 1

The correct option is D Four times

During their lifecycle, two moults take place inside the egg of Ascaris. The first larval stage can be observed in the egg after 17- 22 days, the first moult to the second larval stage which takes place from 22- 27 days. The second molt takes place from the third larval stage beginning from 27th day. Molting to the third larval stage occurs over a period of 2- 6 week followed by the fourth moult. Thus, the correct answer is option D.