What is spermatogenesis?

Answer 1

Spermatogenesis is the development of mature spermatozoa (sperm cells) from spermatogonia; it includes spermatocytogenesis and spermiogenesis.

• In the testes there are seminiferous tubules
• Seminiferous tubule surrounded by epithelium
• On epithelium are SPERMATOGONIA cells
• These are diploid cells
• Divide by mitosis
• Some remain in epithelium as more spermatogonia
• However, some move towards middle of tubule
• They grow larger and are now called PRIMARY SPERMATOCYTES
• They undergo meiosis I to create
• SECONDARY SPERMATOCYTES which are haploid
• 2-3 days later meiosis II occurs to create
• SPERMATIDS
• These begin to differentiate
• They are enveloped by the Sertoli Cells and undergo SPERMIOGENESIS
• This gives them their characteristic shape from a round cell to the head and elongated tail. The cytoplasm is remodeled. This creates
• SPERMATOZOA

Note: The production of egg cells, the female counterpart to spermatogenesis, is called oogenesis.

Answer 2

Spermatogenesis is the process during which spermatozoa cells are produced. They are critical in the process of meiosis, which is responsible for reproduction in animals and plants.

Answer 3

Spermatiogenesis is the process of producing sperm and oogenesis is the process of producing egg cells.
fertilization

Answer 4

Spermatogenesis is the process by which sperm is made and oogensis is the process by which an egg is made. Obviously spermatogenesis occurs in males and oogensis in females

Answer 5

What causes spermatogenesis

Answer 6

it is the process of formation of sperms