Question

Pick the odd homologous pair out.
(a) Bartholin’s gland - Cowper’s gland
(b) Clitoris- Penis
(c) Mons pubic- Glans penis
(d) Labia majora - Scrotum

Answer 1

Hint: An embryo in the early stages has reproductive structures, ducts, and gonads that can develop into a female or male system. Once the genes determining sex are activated, the suitable structures will persist while the others degenerate. The male gonads develop testes, whereas female gonads will develop into ovaries.

Complete answer:
Odd homologous pairs are mons pubic- glans penis. The mons pubis is a tissue mound made up of fat located directly anterior to the pubic bones. This mound of tissue is prominent in females and is usually covered in pubic hair. The mons pubis functions as a source of cushioning during sexual intercourse. Whereas the glans penis can be described as the rounded head (or tip) of the penis. Situated in the middle of the glans penis is the opening of the urethra, the tube through which semen and urine exit the body.
Bartholin’s glands are homologous with the Cowper’s gland. The fact that Bartholin's glands supply a mucus for the lubrication of the entrance to the vagina during sexual excitement, and that Cowper's glands secrete a mucous fluid which acts in part as a vehicle for the seminal discharge in male. A small erectile organ, the clitoris, lies at the anterior junction of the labia minora. It is homologous to the penis in the male. The labia majora and the male scrotum are homologous structures as they both protect the other external genital organs.
So, the correct answer is ‘Mons pubic- Glans penis’.

Note: Both the male and female reproductive systems play an important role in the process of reproduction. Other than these reproductive organs, there are sex hormones that are produced by the respective glands and are mainly involved in the development of secondary sexual characteristics and proper functioning of the reproductive tracts.