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- Spermatogenesis takes place in the testes of males, oogenesis takes place in the ovary of the females.
- Spermatogenesis produces small, motile spermatozoa whereas in oogenesis the ovum is spherical, not motile and is much larger with more food reserves and cytoplasm.
- Spermatogenesis involves a metamorphosis stage called spermiogenesis, in oogenesis there is no metamorphosis stage.
- In spermatogenesis, 4 gametes are produced from each meiotic division, whereas in oogenesis there is only 1 gamete produced from each division as the unequal cytokinesis leads to the formation of polar bodies.
- Spermatogenesis occurs in males (human males) continuously from puberty to death whereas oogenesis starts in females in the fetal period. It takes 70 days for sperm to be produced in males.
- In oogenesis, the development of the oocyte is arrested at prophase I of meiosis until puberty, and then stops at metaphase II of meiosis until fertilization, where the meiotic division is finally completed. In males meiosis occurs continuously
- The hormones in the 2 processes have different effects - in oogenesis, FSH is responsible for the choice of the primary oocyte and causes the cells of the membrana granulosa to proliferate to form the theca interna which secretes oestrogen, and the theca externa. LH in females stimulates ovulation and the maturation of the Graafian follicle. In males, on the other hand, FSH increases the activity of the Sertoli cells which are involved in spermiogenesis (the metamorphosis stage of spermatogenesis). LH in males stimulates the Leydig cells to secrete testosterone.
What else can I help you with?
What is one difference between oogenesis and spermatogenesis?
One key difference is that oogenesis produces one functional egg cell along with two or three polar bodies, while spermatogenesis produces four functional sperm cells through meiosis.
What is the difference between spermatogensis and oogensis?
Spermatogenesis is the process by which sperm cells are produced in the testes of males, while oogenesis is the process by which egg cells are produced in the ovaries of females. Spermatogenesis results in the production of four haploid sperm cells, while oogenesis produces one haploid egg cell and polar bodies. Additionally, spermatogenesis begins at puberty and continues throughout a male's life, while oogenesis begins before birth and has a limited number of egg cells that are released during a female's reproductive years.
Two examples of gametogenesis?
Gametogenesis is defined as the production of gametes, or sex cells. The two examples would be spermatogenesis (production of sperm in males) and oogenesis (production of eggs in females.)
Responsible for gametogenesis?
Gametogenesis occurs in the gonads. Spermatogenesis happens in the testes, and oogenesis in the ovaries.
Why you need to explain spermatogenesis and oogenesis to a couple?
Because the birds and the bees is a fairy tale.
How do oogenesis and spermantogenesis differ?
In oogenesis after the first meiotic division one egg and one tiny cell are created. In Meiosis II the egg and three small cells are created. The three small cells are thrown away and the egg undergoes fertilization. In spermatogenesis after meiosis II four working sperms are ready to be used. There is only one usable cell created in oogenesis while in spermatogenesis four cells are created. the end result of oogenesis is only one viable cell while in sprematogenesis there are four.
The final product of oogenesis is one?
The cellular product of spermatogenesis is four spermatids. The final product of oogenesis is one ovum and three polar bodies.
Do reproductive cells produce sex cells?
by meiosis. for sperm it is called spermatogenesis while for eggs it is called oogenesis.
What is the name for male meiosis?
It is called spermatogenesis and for females it is called oogenesis.
How many cells does spermatogenesis and oogenesis produce in humans how many chromosomes are in each?
spermatogenesis produces 4 sperm cells and oogenisis produces one ovum. Both have 23 chromosomes each
Summarize the major characteristics of spermatogenesis and oogenesis?
Spermatogenesis is the process by which diploid cells in the testes undergo division and differentiation to form haploid sperm cells. It involves mitosis, meiosis, and cellular differentiation to produce four functional sperm cells. On the other hand, oogenesis is the process by which diploid cells in the ovaries develop into mature egg cells. Unlike spermatogenesis, oogenesis only produces one mature egg cell per cycle and involves unequal division of cytoplasm between the resulting cells.
How are oogenesis and spermatogenesis similar?
Oogenesis is the formation of the ovum, and spermatogenesis is the formation of the sperm. These two processes are similar as they are both formed by meiosis, (reduction division). Meiosis is the process of cell division where one mother cell will create four daughter cells with half the amount of genetic information. Or in other words, oogenesis and spermatogenesis are creating gametes.
