difference between spermatogenesis and Spermiogenesis?
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Answers
Answer:
Difference between spermatogenesis and spermiogenesis..
Gametogenesis :
Gmateogenesis is the process of formation of gametes from the primary sex organs - the testis and ovaries.
Gametogenesis in a male is called Spermatogenesis
Gametogenesis in a female is called Oogenesis..
Spermatogenesis:
In the testis, the immature male germ cells, Spermatogonia produce sperms by spermatogenesis that begins at the puberty.
Spermatogenesis can be studied under 4 phases... And one of them is spermiogenesis
1.Multiplication phase: The spermatogonial stem cells multiply by mitotic divisions and increase in number.
Each spermatogonial stem cell is diploid and it contains 46 chromosomes..
2.Growth phase: Some of the spermatogonial stem cells develop into primary spermatocytes by increasing in size and the amount of DNA..
3.Maturation phase: A primary spermatocyte completes the first meiotic division leading to the formation of two equal sized, haploid celled called secondaru spermatocytes,which have only 23 chromosomes each.
The secondary spermatocytes undergo second meiotic division to produce 4 equal sized haploid spermatids..
4.Differentiation phase: The spermatids are transformed into spermatozoa(sperms) by the process called spermiogenesis.
Events in spermiogenesis are:
- Golgi complex forms acrosome at the tip of the sperm
- Elongation and condensation of nucleus
- Seperation of centrioles
- Formation of axial filament
- development of mitochondrial spiral,etc.
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Hope you understood this...
Aɴsᴡᴇʀ :-
Sᴘᴇʀᴍᴀᴛᴏɢᴇɴᴇsɪs
- spermatogenesis is the formation of sperm cells
- In the testis, the immature male germ cells, Spermatogonia produce sperms by spermatogenesis that begins at the puberty.
Spermatogenesis is of four phases and one of them is spermiogenesis.
Sᴘᴇʀᴍɪᴏɢᴇɴᴇsɪs
- Spermiogenesis is the final stage of spermatogenesis, which sees the maturation
- The spermatid is a more or less circular cell containing a nucleus, Golgi apparatus, centriole and mitochondria.
- All these components take part in forming the spermatozoon.