Question

(a) Why does fertilization occur only once in a month in a human female? Explain.
(b) Prenatal sex determination has been prohibited by law. State the necessity of enforcement of this law.
(c) Where are human testes located and why? State their functions.

Answer 1

a) Fertilization occurs once in a month as ovary release one egg every month.human testes are located outside the abdominal cavity in the scrotum as they require a low temperature than the normal body temperature .testes helps in the formation of sperms.

Answer 2

(A) fertilization occur only once in a month in human female means that a human female produces an egg once a month and during that time period is known as the fertilized Period of the human female.

(B) prenatal sex determination has been banned by the Indian government because this test leads to female infanticide and it effects the sex ratio of a country.

To keep a check on the female infanticide and to stop and decrease the difference between male and female in the sex ratio are the main motives to ban prenatal sex determination.

(C) testes are located in the scrotum right behind the penis in human males. These are the primary Male reproductive organs.

The two main functions that are performed by testes are:

● production of gametes are sperms in human males, and;

● secretion of male hormones which mainly include testosterone.