The egg case in female cockroach is formed by secretion of

Colleterial gland

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Mushroom gland

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Conglobate gland

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Prothoracic gland

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Solution

The correct option is B Colleterial gland
Egg case known as ootheca is formed by the secretion of the colleterial glands over the fertilised eggs in the genital pouch of the female cockroach. The female deposits the case in some warm dark sheltered place. Egg case is a purse shaped structure containing sixteen fertilized eggs in two rows.
Therefore, the correct answer is option A.

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