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Question
Can you identify major differences between spermatogenesis and oogenesis?
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Solution
1: Definition
The process of formation of male gametes or sperms is called spermatogenesis. Whereas in the female reproductive system, the formation of ovum is called oogenesis.
2: Location
Spermatogenesis is a process that occurs in the seminiferous tubules of the testis. Whereas oogenesis occurs within the ovary of the female reproductive system.
3: Time period
Spermatogenesis starts at the onset of puberty in males. Whereas, oogenesis starts at the foetal stage and after birth, this process is paused until the female attains puberty. Thus in males spermatogenesis is a continuous process whereas in females oogenesis is a discontinuous process. Part 4: Polar body formation In oogenesis, the primary spermatocyte undergoes unequal meiotic division and gives rise to secondary oocyte and first polar body. This small polar body further degenerates. Whereas in spermatogenesis, the primary spermatocyte divides equally and give rise to secondary spermatocytes. Thus there is no polar body formation in spermatogenesis.
5 : Number of cells formed
Generally meiotic division results in the formation of four daughter cells. But in oogenesis, only one ovum is produced as the end product. Whereas in spermatogenesis, four sperms are produced.
6 : Tabular representation
FeatureSpermatogenesisOogenesisDefinitionProcess of formation ofsperm Process of formation of ovumProcess of formation of ovum LocationOccurs in the seminiferous tubules of testesOccurs in the ovary of female reproductive system Time periodIt's a continuous process that starts with the onset of puberty in malesIt's a discontinuous process that starts at the foetal stage and is paused after birth until puberty in femalesPolar body formationIn spermatogenesis no polar body is formed In oogenesis the polar body is formed due to the unequal division of primary and secondary oocyteNumber of cells formedSpermatogenesis results in the formation of four sperm cells Oogenesis results in the formation of one ovum
The process of formation of male gametes or sperms is called spermatogenesis. Whereas in the female reproductive system, the formation of ovum is called oogenesis.
2: Location
Spermatogenesis is a process that occurs in the seminiferous tubules of the testis. Whereas oogenesis occurs within the ovary of the female reproductive system.
3: Time period
Spermatogenesis starts at the onset of puberty in males. Whereas, oogenesis starts at the foetal stage and after birth, this process is paused until the female attains puberty. Thus in males spermatogenesis is a continuous process whereas in females oogenesis is a discontinuous process. Part 4: Polar body formation In oogenesis, the primary spermatocyte undergoes unequal meiotic division and gives rise to secondary oocyte and first polar body. This small polar body further degenerates. Whereas in spermatogenesis, the primary spermatocyte divides equally and give rise to secondary spermatocytes. Thus there is no polar body formation in spermatogenesis.
5 : Number of cells formed
Generally meiotic division results in the formation of four daughter cells. But in oogenesis, only one ovum is produced as the end product. Whereas in spermatogenesis, four sperms are produced.
6 : Tabular representation
FeatureSpermatogenesisOogenesisDefinitionProcess of formation ofsperm Process of formation of ovumProcess of formation of ovum LocationOccurs in the seminiferous tubules of testesOccurs in the ovary of female reproductive system Time periodIt's a continuous process that starts with the onset of puberty in malesIt's a discontinuous process that starts at the foetal stage and is paused after birth until puberty in femalesPolar body formationIn spermatogenesis no polar body is formed In oogenesis the polar body is formed due to the unequal division of primary and secondary oocyteNumber of cells formedSpermatogenesis results in the formation of four sperm cells Oogenesis results in the formation of one ovum
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