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What is the difference between a primary...

What is the difference between a primary oocyte and a secondary oocyte?

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Primary oocyte is a diploid cell formed in foetal ovary when the gamete mother cell, oogonia is arrested at prophase-I of meiosis. Secondary oocyte is the haploid cell formed from primary oocyte that completes its first meiotic division, during puberty and produces the female gamete ova(n).
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NCERT EXEMPLAR-HUMAN REPRODUCTION -Human Reproduction
  1. The mother germ cells are transformed into a mature follicle through s...

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  2. During reproduction the chromosome nmber (2n) reduces to half (n) in t...

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  3. What is the difference between a primary oocyte and a secondary oocyt...

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  4. What is the significance of ampullary-isthmic junction in the female r...

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  5. How does zona pellucida of ovum help in preventing polyspermy?

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  6. Mention the importance of LH surge during menstrual cycle.

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  7. Which type of cell division forms spermatids from the secondary sperma...

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  8. A human female experiences two major changes menrache and menopause du...

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  9. (a) How many spermatozoa are formed from one secondary spermatocyte? ...

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  10. Corpus luteum in pregnancy has a long life. However if fertilisation d...

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  11. What is foetal ejection reflex? Explain how it leads to parturition?

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  12. Except endocrine function, what are the other functions of placenta.

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  13. Why doctors recommend breast feeding during initial period of infant g...

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  14. What are the events that take place in the ovary and uterus during fol...

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  15. Given below is a flow chart showing ovarian changes during menstrual c...

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  16. Given a schematic labelled diagram to represent oogenesis (without des...

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  17. What are the changes in the oogonia during the transition of a primary...

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  18. What role does pituitary gonadotropins play during follicular and ovul...

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  19. Meiotic division during oogenesis is different from that in spermatoge...

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  20. The zygote passes through several developmental stages till implantati...

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