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प्रश्न
Define Spermatogenesis.
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उत्तर
Spermatogenesis is the process of formation and development of sperm cells (spermatozoa) in the testes from spermatogonial stem cells through mitosis and meiosis.
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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
find odd one from following: Thymine, Cytosine, Adenine, Pepsin.
Differentiate between Human skin cell and Human ovum (number of chromosomes).
Why is it important that a very large number of sperms should be present in the semen ?
Multiple choice question. Tick (✓) the correct choice:
Testis are present in a sac called
- scrotum
- oviduct
- epididymis
- none of the above
Name the following:
The tubular knot fitting like a cap on the upper side of the testis.
How are the sperms formed?
Which of the following correctly describes the gubemaculum?
How much semen is generally present in seminal fluid?
Male hormone is produced in the testis by cells of ______.
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is ______.
Seminal vesicles are located in ______.
Mark the odd one.
Give two reasons for the appearance of variations among the progeny formed by sexual reproduction.
Given below is a certain situation. Analyze and describe its possible impact on a person:
The Vas deferens of a man is plugged.
Given below is a certain situation. Analyze and describe its possible impact on a person:
Prostate and seminal vesicles are not functional.
List two roles of the Testis in the human reproductive system.
State very briefly the chief function of the following:
Sperm duct (vas deferens)
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Sperm : Spermatogenesis :: Ovum : ______.
Given below is the outline of the male reproductive system. Name the parts labelled 1 to 8. Also name the corresponding structure of part (4) in female reproductive system.
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