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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.
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Oogenesis and spermatogenesis differ in how many cells are formed. Oogenesis forms 4 eggs but only 1 is viable, while spermatogenesis forms 4 viable sperm cells.
Spermatiogenesis is the process of producing sperm and oogenesis is the process of producing egg cells. fertilization
There is a primary difference between spermatogenesis and oogenesis. The latter gives more cytoplasm to the oocyte while the spermatosis divides it.
The similarity of Spermatogenesis and Oogenesis is that the both of them is needed in producing an offspring.
Meiosis, the process by which gametes are formed, can also be called gametogenesis, literally "creation of gametes." The specific type of meiosis that forms sperm is cal…led spermatogenesis, while the formation of egg cells, or ova, is called oogenesis. The most important thing you need to remember about both processes is that they occur through meiosis, but there are a few specific distinctions between them. Spermatogenesis The male testes have tiny tubules containing diploid cells called spermatogonium that mature to become sperm. The basic function of spermatogenesis is to turn each one of the diploid spermatogonium into four haploid sperm cells. This quadrupling is accomplished through the meiotic cell division detailed in the last section. During interphase before meiosis I, the spermatogonium's 46 single chromosomes are replicated to form 46 pairs of sister chromatids, which then exchange genetic material through synapsis before the first meiotic division. In meiosis II, the two daughter cells go through a second division to yield four cells containing a unique set of 23 single chromosomes that ultimately mature into four sperm cells. Starting at puberty, a male will produce literally millions of sperm every single day for the rest of his life.Oogenesis Just like spermatogenesis, oogenesis involves the formation of haploid cells from an original diploid cell, called a primary oocyte, through meiosis. The female ovaries contain the primary oocytes. There are two major differences between the male and female production of gametes. First of all, oogenesis only leads to the production of one final ovum, or egg cell, from each primary oocyte (in contrast to the four sperm that are generated from every spermatogonium). Of the four daughter cells that are produced when the primary oocyte divides meiotically, three come out much smaller than the fourth. These smaller cells, called polar bodies, eventually disintegrate, leaving only the larger ovum as the final product of oogenesis. The production of one egg cell via oogenesis normally occurs only once a month, from puberty to menopause.
meiosis is the process; males produce four haploid gametes (sperm) while in females only a single haploid gamete (egg) is produced. The other three cells (polar bodies) fail t…o mature and die.
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 divis…ion). 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.
Spermiogenesis is a stage of spermatogenesis where spermatids are transformed into spermatozoa.
Spermiogenesis is just a stage of Spermatogenesis. See related links below for more detail about Spermatogenesis and the Spermiogenesis stage.
They are both processes of creating gametes. The products are haploid
I'm not going to get into the details, but simply... spermatogenesis produces sperm (only occurs in males) and oogenesis produces the egg (only occurs in females).
Spermatogenisis produces four gametes while oogenesis produces only one. Oogenesis produces one egg and three polar bodies (that immediately die off). Spermatogenisis produces… four sperm that are al equally complex. The egg is the major part of the potential fertilized cell and it takes a lot of energy to make (think about it, all it needs to start dividing is a few extra chromosomes) and therefore most of the process's energy goes to the egg.
Hairy Johnson Hairy Vag.
Spermiogenesis is a stage of Spermatogenesis where spermatids are transformed into spermatozoa.
Men, but not women, can produce gametes throughout their lives.
When trying to remember stages of Spermatogenesis and Oogenesis it is helpful to make up a song to a familiar tune about the different steps. You can also use an acrostic to h…elp memorize the information.
Because the birds and the bees is a fairy tale.