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Question

During growth Ascaris undergoes moulting in the body of host for

A
Two times
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B
Six times
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C
Five times
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D
Four times
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Solution

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.

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