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Differentiate spermatogenesis and oogenesis.


Differences between Spermatogenesis and Oogenesis

 Spermatogenesis

 Oogenesis

1. It is the formation of mature male gametes



2. It occurs in testis.

3. All the spermatogonia undergo growth and differentiation to form primary spermatocytes.

4. Meiosis results in the formation of equal cells.

5.Four male gamete or sperms are formed.

6. Spermatozoa are delicate, microscopic metile structures.

1. It is the formation of mature female gametes.

2. It occurs ovary.

3. Many of oogonia fail to form primary oocyte.

4. Meiosis results in the formation of unqual cells .

5. Only one female gamete or ovum is formed.

6. The egg is small rounded structure which is non-motile.

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Name the parts of male reproductive system.

The process of differentiation of spermatid into a spermatozoa is known as :
  • spermatogenesis
  • gametogenesis
  • spermiogenesis
  • oogenesis

Primary spermatocyte produces 4 spermatozoa, but primary oocyte produces :
  • 1 ovum
  • 2 ova
  • 3 ova
  • 4 ova

Ovulation takes place :
  • 2 weeks before the start of next menstrual cycle
  • 14th day of 28 days cycle
  • 10 days after the cease of previous monthly cycle
  •  All the above are correct.

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