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प्रश्न
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
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उत्तर
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Spermatogenesis
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Oogenesis
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It is the process by which sperms are formed from the sperm mother cell in males
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It is the process by which ovum is formed from the oogonia in females
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After the second meiotic divisions in a single spermatogonium, 4 spermatids are obtained, which undergo maturation to form 4 sperm cells, or spermatozoa
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After the second meiotic divisions in the single oogonium, only one ovum and three polar bodies are obtained.
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Spermatogenesis occurs in males from puberty almost until death.
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In females, oogenesis starts before birth and occurs until menopause.
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संबंधित प्रश्न
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
Define spermiation.
At what stage of development are the gametes formed in newborn male and female?
Identify the diploid cell.
Which of the following occurs during maturation phase of spermatogenesis?
The nutritive cells found in seminiferous tubules are ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
Which type of cell division forms spermatids from the secondary spermatocytes?
The diagram given below shows the various steps in spermatogenesis.
- Name the parts labelled '1', '2' and '3'.
- Name the process by which part '3' changes to part '4'.
Match List - I with List - IІ.
| List - I | List - II |
| A. Head | I. Enzymes |
| B. Middle piece | II. Sperm motility |
| C. Acrosome | ΙII. Energy |
| D. Tail | IV. Genetic material |
Choose the correct answer from the options given below:
