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

What will you look for to identity the sex of the following?
  1. Male frog - a copulatory pad on the first digit of the hind limb
  2. Female cock- - anal cerci roach
  3. Male shark - claspers borne on pelvic fins
  4. Female Ascaris - sharply curved posterior end

Solution

A clasper is a male anatomical structure found in some groups of animals, and used in mating. Male cartilaginous fish like shark have claspers formed from the posterior portion of their pelvic fin which serves as intromittent organs used to channel semane into the female's cloaca during mating.

Asked in: NEET 2011 (Screening)

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