Question

describe the formation of a gametes in male and female genetila? with diagram

Answer 1

Gametogenesis is a biological process by which diploid or haploid precursor cellsundergo cell division and differentiation to form mature haploid gametes. Depending on the biological life cycle of the organism, gametogenesis occurs by meiotic division of diploid gametocytes into various gametes, or by mitotic division of haploid gametogenous cells. For example, plants produce gametes through mitosis in gametophytes. The gametophytes grow from haploid spores after sporic meiosis. The existence of a multicellular, haploid phase in the life cycle between meiosis and gametogenesis is also referred to as alternation of generations.

In Animals



Scheme showing analogies in the process of maturation of the ovum and the development of the spermatids, following their individual pathways. The oocytes and spermatocytes are both gametocytes. Ova and spermatids are complete gametes. In reality, the first polar body typically dies without dividing.

Animals produce gametes directly through meiosis in organs called gonads (testicles in males and ovaries in females). Males and females of a species that reproduces sexuallyhave different forms of gametogenesis

spermatogenesis (male)

oogenesis (female)

Answer 2

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• Millions of sperms are produced by the testes. Each sperm is a single cell with all the usual components. It has a head, a middle piece and a tail.