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

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

  • Option 1)

    Female Ascaris - Sharply curved posterior end

  • Option 2)

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

  • Option 3)

    Female cockroach - Anal cerci

  • Option 4)

    Male shark - Claspers borne on pelvic fins

 
Answers (1)
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Reproduction in chondrocytes -

Male bear pelvic fins having claspers. Fertilization is internal and are mostly viviparous.

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Class chondrocytes (cartilaginous fish) -

Marine and predaceous. Mouth is located ventrally and teeth are modified, placoid scales directed backwardly. Air bladder is absent.

- wherein

Eg. Torpedo, Scoliodon, Pristis, Petromyzon.

 

 Shark belongs to cartilaginous fish

 


Option 1)

Female Ascaris - Sharply curved posterior end

Incorrect

Option 2)

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

Incorrect

Option 3)

Female cockroach - Anal cerci

Incorrect

Option 4)

Male shark - Claspers borne on pelvic fins

Correct

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