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प्रश्न
How many spermatozoa are formed from one secondary spermatocyte?
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उत्तर
Four spermatids are formed from one secondary spermatocyte. All of them subsequently develop into spermatozoa through a process called spermiogenesis.
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संबंधित प्रश्न
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions:
- Acrosome
- Nucleus
- Middle piece
Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process.
The fusion of the male and the female gametes is called ______.
Define spermiogenesis.
Identify True/False statement. Correct the false statement to make it true.
Oogenesis takes place in the corpus luteum.
Explain the structure of secondary oocyte.
Identify the labels (i-iv) in the given diagram of the ovum.
How many autosomes does a human primary spermatocyte have?
Extrusion of second polar body from egg nucleus occurs ______.
By which process sperms released from the seminiferous tubules?
Identify the wrong statement from the following.
Gray crescent is the area ______.
Preparation of sperm before penetration of ovum is ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
Acrosome is a type of ______.
Head of epididymis is called as ______.
Which type of cell division forms spermatids from the secondary spermatocytes?
Given below are two statements.
- Statement I: The spermatids are non-motile and non-functional which get transformed into functional spermatozoa by the process of spermiogenesis.
- Statement II: During the process of this change, the spermatids remain held to each other and to Leydig's cells by cytoplasmic bridges.
In light of the above statements, select the correct answer from the option given below.
Draw a neat and labelled diagram of spermatogenesis.
Draw a labelled diagram of a section through the ovary.
