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प्रश्न
Answer the following question based on the human male reproductive system:
By which type of cell division, sperms are formed?
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उत्तर
- Sperms are formed by the type of cell division known as meiosis.
- Meiosis reduces the chromosome number by half, producing haploid sperm cells essential for fertilisation.
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संबंधित प्रश्न
Pituitary dwarfism is treated with gene therapy by____
(A) Human insulin
(B) Tissue growth factor - Beta
(C) Tissue plasmogen activator
(D) Human growth hormone producer gene
What is the full form of IVF?
Define Spermatogenesis.
Given alongside is a diagram of male reproductive system in humans. Label the parts indicated by numbers 1 to 5, and state their functions.
Given below is the schematic diagram of the sectional view of the human male reproductive system.
Name the parts numbered 1-11.
Sketch the labeled diagram:
Human male reproductive system
Explain the Term Penis.
Explain the term Vasectomy.
Write the functional activity of the following structure:
Cowper’s gland
Name the secondary sex organs in males.
In the given diagram represents the
In the male reproductive system, the vasa efferentia opens into the ______.
Each testis is connected to the wall of scrotum by short. fibromuscular band called ______.
Occurrence of Leydig’s cells and their secretion is ______.
Vas deferens receives the duct of seminal vesicle and forms the ______.
Seminal vesicles are located in ______.
Vasa efferentia exist in between:
Assertion (A): Testes in human males are located outside the abdominal cavity in scrotum.
Reason (R): Scrotum provides a lower temperature than the normal body temperature for sperm formation.
Given below is a certain situation. Analyze and describe its possible impact on a person:
Testes of a male boy are not able to descend into the scrotum during his embryonic development.
Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs:
| Column I | Column II | ||
| (a) | Leydig Cells | 1. | Lack of thyroxine in children |
| (b) | Stoma | 2. | 12 pairs |
| (c) | Ova | 3. | Testosterone |
| (d) | Cranial nerve | 4. | Diffusion of respiratory gases |
| (e) | Cretinism | 5. | Haploid cells |
| 6. | 31 Pairs | ||
| 7. | Diploid cells |
