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Give the significance of fertilization ....

Give the significance of fertilization .

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Two functions of fertilization: (i) It restores diploidy (2N) in the zygote. (ii) It combines the characters of two parents and introduces variations, so helps in evolution.
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MODERN PUBLICATION-HUMAN REPRODUCTION-REVISION EXERCISES (SHORT ANSWER TYPE QUESTION (A)QUESTIONS FROM STATE BOARD EXAMINATIONS)
  1. Why are polar bodies formed during oogenesis but not during spermatoge...

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  2. Write two differences between spermtogenesis and oogenesis

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  3. Give the significance of fertilization .

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

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

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  6. Give examples of animals exhibiting oestrous cycle.

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

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  8. Give examples of animals exhibiting menstrual cycle.

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  9. Implantation

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  10. What do you mean by parturition?

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

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

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

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  14. How is placenta formed?

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

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  16. What do you mean by pregnancy?

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  17. What is parturition?

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

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  19. List any four differences between sperm and ovum.

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  20. Draw a neat diagram of an oocyte and label. (i) Corona radiata (ii)...

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