Q.
Which of the following abdominal sterna does not contribute to the formation of brood pouch in the female Periplaneta?
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a
9th sternum
b
7th sternum
c
6th sternum
d
8th sternum
answer is C.
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Detailed Solution
In the female Periplaneta, the 7th abdominal sternum is boat-shaped and together with the 8th and 9th sterna forms a brood or genital pouch. The anterior part of the brood pouch contains female gonopore, spermathecal pores and the openings of collateral glands.
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