question_answer 23)

  Match the following with reference to cockroach and choose the correct option.

Column I	Column II
A.  Phallomere	1.  Chainof developing ova
B.   Gonopore	2.  Bundles of sperm
C.  Spermatophore	3.  Opening of the ejaculatory duct
D.  Ovarioles	4. The external genitalia

Codes ABCD                      ABCD (a) 3   4  2   1                  (b)4  3   2   1 (c)4   2   3   1                  (d)2  4  3   1

Answer:

                  (b) A. (3)    B. (4)    C. (2)    D.  (1) Phallomere also called as pseudopenis, is the external genitalia in cockroach. Gonopore is a specific reproductive pore or aperture which acts as an opening of  ejaculatory duct. Spermatophore is a capsule or bundle of sperm created by male cockroach containing spermatozoa. During copulation, its transferred as a whole in to the female. Ovarioles group of eight ovarian tubules or ovarioles forms ovary contains chain of developing ova.