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प्रश्न
Define spermiogenesis.
Define the term spermiogenesis.
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उत्तर १
Spermiogenesis is the process of transforming spermatids into mature, flagellated spermatozoa (sperms).
उत्तर २
The process of transformation of a circular spermatid to a spermatozoon is called spermiogenesis.
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संबंधित प्रश्न
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
Male and female gametes are ______.
Define spermiation.
Draw a labelled diagram of sperm.
Name the functions - Acrosome of sperm.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
Describe the process of oogenesis in human female.
Describe the process of spermatogenesis with the help of diagram.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
Answer the following type of question Assertion (A) and Reason (R).
(A) - In human males, testes are extra-abdominal and lie in scrotal sacs.
(R) - Scrotum acts as a thermoregulator and keeps the temperature lower by 2°C for normal sperm production.
Complete the analogy.
1 primary spermatocyte : 4 spermatozoa :: 1 primary oocyte : ____________.
Identify the longest period of menstrual cycle.
Select the correct sequence of oogenesis.
Which of the following events take place during spermatogenesis?
Conversion of spermatid into sperm is called as _______.
Sertoli cells are found in ______.
It The cell division in secondary oocyte is suspended at ______.
Gray crescent is the area ______.
The nutritive cells found in seminiferous tubules are ______.
Which of the following contains the actual genetic part of a sperm?
Penetration of the sperm in the ovum is followed by ______
Sperms can be stored for several years in liquid nitrogen with a temperature of ______.
Follicular atresia is:
Human milk differs from cow's milk because human milk contains:
How many spermatozoa are formed from one secondary spermatocyte?
What is spermatogenesis?
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'.
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
