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  • What will you look for to identify the sex of the following ?Option: 1 Male shark - Claspers borne on pelvic fins<div class='qna-option

What will you look for to identify the sex of the following ?

Option: 1

Male shark - Claspers borne on pelvic fins


Option: 2

Female Ascaris - sharply curved posterior end


Option: 3

Male frog - A copulatory pad on the first digit of the hind limb


Option: 4

Female cockroach - Anal cerci


Answers (1)

best_answer

Shark males have a pair of intermittant organs known as claspers. On the inner edges of the pelvic fins are claspers, adaptations of the fins.

While female Ascaris have a straight posterior end, male Ascaris have a curved posterior end.

The absence of vocal sacs in female frogs and the copulatory pad on the first digit of the forelimbs (not the hind limbs) identify male frogs from females.

Anal cerci, which are present in both males and females, are a pair of appendages that extend from the end of the abdomen and originate close to the body's tenth segment. Females lack an anal style, but men do. So, A is the right answer.

Posted by

Divya Prakash Singh

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