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NEET 2018, Biology Q84: Basis of Classification

NEET2018Paper 2018Biology
Q.

Which of the following features is used to identify a male cockroach from a female cockroach?

  1. A

    Presence of a boat shaped sternum on the 9th abdominal segment

  2. B

     Forewings with darker tegmina

  3. C

     Presence of caudal styles

  4. D

     Presence of anal cerci

Solution

Males bear a pair of short, thread like anal styles which are absent in females.

Anal/caudal styles arise from 9th abdominal segment in male cockroach.

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