Animal Kingdom Question 2
Question: Which of the following is characteristic feature of cockroach regarding sexual dimorphism ?
(1) Presence of anal cerci
(2) Dark brown body colour and anal cerci
(3) Presence of anal styles
(4) Presence of sclerites
Show Answer
Answer: (3) Presence of anal styles
Explaination-
Male cockroach bear a pair of short, thread like anal-style which are absent in female.
sexual dimorphism- the differences in appearance between males and females of the same species, such as in colour, shape, size, and structure, that are caused by the inheritance of one or the other sexual pattern in the genetic material.
