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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
With the help of diagrammatic representation, explain the process of gametogenesis
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions:
- Acrosome
- Nucleus
- Middle piece
Give scientific reason.
There is a menopause when women are 45-50 years old.
The process which the sperm undergoes before penetrating the ovum is ____________.
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.
Draw a labeled sketch of a spermatozoan.
Expand the acronym.
hCG
During spermatogenesis, spermatogonium grows in size to become ______.
Which of the following are known as the nourishing cells present in the seminiferous tubules?
Identify the CORRECT sequence of events.
What is the location of oogenesis?
Which of the following events take place during spermatogenesis?
Middle piece of mammalian sperm possesses ______.
Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
Besides activating the egg another role of a sperm is to carry ______ to egg.
Aquatic animals in which fertilisation occurs in water are said to be
Germ cells present in the seminiferous tubules undergo ______
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'.
What are the two main types of gametogenesis based on the organ in which they occur?
