Question

Which of the following is characteristic feature of cockroach regarding sexual dimorphism?

• A. Presence of anal styles
• B. Presence of sclerites
• C. Presence of anal cerci
• D. Dark brown body colour and anal cerci

Answer 1

The Correct Option is A

In biology, sexual dimorphism refers to the differences in appearance between male and female individuals of the same species. One characteristic feature of sexual dimorphism in cockroaches is the presence of specific structures that can be seen or are only apparent in one sex of the species.

Among the given options, the presence of anal styles is a characteristic feature that is specifically linked to sexual dimorphism in cockroaches. Anal styles are small, spine-like projections found on the ninth sternite. These structures are only present in male cockroaches, which helps differentiate them from females.

Characteristic	Sex
Anal Styles	Male

Hence, the correct answer is the presence of anal styles.