Question

which cells in testis and ovaries are responsible for production of gamets

Answer 1

Answer:

=> Gonads are where male and female gametes are produced. The production of sperm cells is known as spermatogenesis. This process occurs continuously and takes place within the male testes. The male germ cell or spermatocyte undergoes a two-part cell division process called meiosis.

Answer 2

Answer: From primordial germ cells, haploid gametes are created in the testes and ovaries. These early germ cells move to the gonads that will eventually grow into the female ovaries and the male testicles, respectively.

Explanation:

• In the gastrulating mammalian embryo, a tiny subset of cells receive signals from their neighbours to differentiate into primordial germ cells. The gonads are formed when these cells migrate into the genital ridges.
• Here, the primordial germ cells begin to transform into sperm or eggs, depending on whether the gonad is developing into an ovary or a testis. Unless the somatic cells of the developing gonad include a Y chromosome, in which case the gonad develops into a testis.
• This testis-determining function is driven by the Sry gene on the Y chromosome, which is expressed in a subset of somatic cells in the developing gonad and drives these cells to differentiate into Sertoli cells.
• In turn, the Sertoli cells create the signal molecules that encourage the development of male traits, inhibit the development of female traits, and encourage the primordial germ cells to commit to sperm formation.

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