Question

Ootheca is formed in cockroach by

• A. Phallic gland
• B. Conglobate gland
• C. Utricular gland
• D. Collateral gland

Answer 1

Answer: (D)

Collateral gland

Collateral glands are present in a single pair. It is located on third and fourth abdominal segments of a female cockroach. It secretes the liquid which helps in the formation of ootheca.
Conglobate glands are present near male genital aperture and involve in release musky odour for the attraction of females and also a secrete outermost layer of spermatophore wall.
Utricular glands are also called as mushroom glands present in a male cockroach is involved in secretion of the innermost layer of spermatophore and for nourishment and storage of sperms.

So, the correct answer is option D.