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Define spermatogenesis....

Define spermatogenesis.

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Formation of sperm in the seminiferous tubules of testes
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ICSE-HUMAN REPRODUCTION-PRACTICE QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Which germ layer forms CNS?

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  2. Which germ layer forms the skeleton and muscles?

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  3. What is the function of sperm lysins?

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  4. Where does the foetus develop in the female genital tract?

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  5. How does a sperm penetrate through the zona pellusida in human ovum?

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  6. What are Leydig's cells?

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  7. What term is used for the chemicals which occur in sperm's acrosome an...

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  8. What does the blastocoel of mammalian embryo phylogenetically signify ...

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  9. Define spermatogenesis.

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  10. Name the layer of cells which forms the outer wall of blastocoel.

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  11. What is the special structural feature of the epithelial cells that li...

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  12. Which germ layers produce nervous system and kidneys?

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  13. Write one difference between blastos and a gamete.

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  14. Placenta acts as an endocrine tissue. Justify.

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  15. At which stage of life is oogenesis initiated in human female? When do...

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  16. Name the various extraembryonic membranes.

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  17. Which cell organelle is modified to form the acrosome? Name the chemic...

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  18. Differentiate between menarche and menopause

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  19. Where does fertilisation normally take place in a human female?

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  20. At what stage is mammalian embryo implanted in the uterus?

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