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प्रश्न
Which type of cell division forms spermatids from the secondary spermatocytes?
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उत्तर
The secondary spermatocytes undrego the second meiotic division to produce four equal, haploid spermatids.
Not Secondary spermatocytes are produced, when the primary spermatocytes undergo the first meiotic division (reduction division).
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संबंधित प्रश्न
The fusion of the male and the female gametes is called ______.
Describe the process of spermatogenesis with the help of diagram.
Answer the following type of question Assertion (A) and Reason (R).
(A) - Head of the sperm consists of acrosome and mitochondria.
(R) - Acrosome contains spiral rows of mitochondria.
At what stage of development are the gametes formed in newborn male and female?
Define gametogenesis.
The secondary oocyte enter into the fallopian tube through the ______.
Identify the labels (i-iv) in the given diagram of the ovum.
Which of the following occurs during maturation phase of spermatogenesis?
What is the location of oogenesis?
The human male gamete is usually about ______ in length.
Conversion of spermatid into sperm is called as _______.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
Select the correct sequence of stages of spermatogenesis in a human male ______.
Growth hormone of pituitary is more effective in ______.
Which of the following cells during gametogenesis is normally diploid?
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
Name the germinal layers from which the following organs develop: Tongue, heart, sweat glands, vagina, mammary glands, kidney.
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?
