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What will be the ratio between sperms an...

What will be the ratio between sperms and ova produced from 25 primary spermatocytes and 25 primary oocytes? Explain with reasons.

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To determine the ratio between the number of sperms and ova produced from 25 primary spermatocytes and 25 primary oocytes, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Spermatogenesis**: - Spermatogenesis is the process of sperm formation in males, starting from spermatogonia (2n). - Each primary spermatocyte (2n) undergoes meiosis to produce secondary spermatocytes (n). ...
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MODERN PUBLICATION-HUMAN REPRODUCTION-REVISION EXERCISES (SHORT ANSWER TYPE QUESTION (A)QUESTIONS FROM STATE BOARD EXAMINATIONS)
  1. What will be the ratio between sperms and ova produced from 25 primary...

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  2. What are leydig cells? Write down their functions

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  3. Why are polar bodies formed during oogenesis but not during spermatoge...

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  4. Write two differences between spermtogenesis and oogenesis

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  5. Give the significance of fertilization .

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  6. What forms the corpus luteum ? Name the hormones secreted by it.

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  7. What is parturition? Name the hormone involved in induction of parturi...

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  8. Give examples of animals exhibiting oestrous cycle.

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  9. What is the function of placenta in human being?

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  10. Give examples of animals exhibiting menstrual cycle.

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  11. Implantation

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  12. What do you mean by parturition?

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  13. Sketch and label seminiferous tubule as seen in T.S. of testis.

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  14. If corpus luteum becomes inactive, what will be its effect on embryo d...

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  15. Write any two differences between external fertilization and internal ...

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  16. How is placenta formed?

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  17. State any two differences between follicular phase and luteal phase of...

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  18. What do you mean by pregnancy?

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  19. What is parturition?

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  20. Where and how complete development and nutrition of embryo takes place...

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