Question

Collateral glands of cockroach help in
A. Fertilization
B. Formation of ootheca
C. Copulation,
D. None of the above

Answer 1

Hint: In a Greek word, it is called the ovary. It is made up of standard proteins and some agents that cause hard around the eggs. It will provide stability and protection. Its appearance looks like a dark reddish-brown. In this, the eggs are vertical in shape.

Complete answer:
The collateral gland of insects is mostly an organ that is associated with the female genital apparatus.
Now let’s see the scientific classification, it is from the kingdom of Animalia, its phylum is Arthropoda, its subphylum is Hexapoda, its class is Insecta, is superorder is dictyoptera, its order is Blattodea. In recent studies, the cockroach in the genus Cryptocercus is the sister group of the termites. Mastotermes are the only termite that is known to produce the cockroach-like ootheca.

The collateral glands appear to be like tubular glands in cockroaches which are not equal in size. Both the glands are open on the dorsal side in the place of the genital chamber. However, the secretion produced by these glands basically, forms the oothecal case of the ootheca.

The female cockroach has two collateral glands that form a hard egg case around the egg called ootheca. This ootheca is made up of protein structures and the agents that cause the protein to get harder around the eggs, for their protection.

Hence, the correct answer is option (B).

Note: The ootheca maintains the water balance through the variation in the surface that is in the dry climate to protect against over-saturation. The protein may not be directly concerned with the formation of ootheca while the other latter probably secretes the resistance in the outer layer of the ootheca.