Match column I with column II and select the correct option using the codes given below.

Column-I Column-II
A. Mons pubis (i) Embryo formation
B Antrum (ii) Sperm
C. Trophectoderm (iii) Female external genitalia
D. Nebenkern (iv) Graafian follicle

A B C D
1 iii iv ii i
2 iii iv i ii
3 iii i iv ii
4 i iv iii ii

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answer is B.

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Detailed Solution

A-III, B-IV, C-I, D-II

A. Mons pubis is a part of the female external genitalia. It is a cushion of fatty tissue covered by skin and pubic hair.

B. The fluid-filled cavity in the Graafian follicle is called antrum.

C. Trophectoderm is the outermost layer of cells of the blastocyst. In fact, it does not contribute to the formation of the embryo, which is entirely derived from the inner cell mass.

D. Nebenkern sheath is a spiral sheath made up of mitochondria, which surrounds the axial fi lament in the middle piece of the sperm of some insects, such as Drosophila.

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