Which among the following is not the function of testes at puberty?

The correct option is D

Secretion of estrogen

The correct options are C and D.

Explanation of correct option:

Option C:

1. The predominant female sex hormone is estrogen, sometimes known as estrogen.
2. Both males and women have considerable levels of estrogens.
3. Estrogens are primarily responsible for the development of female secondary sexual traits.

Option D:

1. During pregnancy, the placenta develops in females.
2. It performs a variety of activities, including hormone production, feeding, excretion, etc.
3. The female hormone estrogen is produced by the ovaries.
4. It is a temporary endocrine gland.

Explanation of incorrect option:

Option A:

1. Germ cells generate the male gametes.
2. Meiosis is the process through which germ cells are generated during sexual reproduction.
3. They are generated in the tests.
4. The male gametes give rise to sperms by meiotic division.

Option B:

1. A testosterone hormone is the principal sex hormone found in men.
2. It has complete control over a man's appearance.
3. The testes are the organs that create testosterone.

Final answer: Development of the placenta and secretion of estrogen is not the function of the testes at puberty.