Question

Female Ascaris can be differentiated from male by _________

(a) presence of Cloaca

(b) presence of penial setae

(c) shorter size than the male and curved posterior end

(d) longer than the male and straight posterior end

The question was asked in semester exam.

My question is based upon Helminthic Diseases in Humans-1 in section Human Health and Disease of Biology – Class 12

Answer 1

Correct answer is (d) longer than the male and straight posterior end

For explanation: Ascaris shows sexual dimorphism. Female Ascaris is longer than male and has a straight posterior end while the males are shorter than females and have a curved posterior tail.