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प्रश्न
What is spermatogenesis?
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उत्तर
Spermatogenesis is the process by which male spermatogonia develop into adult male gametes called spermatozoa. It begins at puberty and usually lasts until death, with only a tiny decline in the amount of sperm produced as age increases.
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संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
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 ______.
What is gamete formation?
If newborns are produced at the age of menopause, they may be with some abnormalities. Why?
Give a schematic representation of spermatogenesis and oogenesis in humans.
Which of the following correctly describes the secondary oocyte?
Identify the longest period of menstrual cycle.
Select the correct sequence of oogenesis.
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
Four primary spermatocytes give rise to ______.
Which of the following is diploid?
Which of the following events take place during spermatogenesis?
In human beings, the largest cell formed during Oogenesis is ______
How many sperms are formed from a secondary spermatocyte?
After ovulation, Graafian follicle regresses into ______.
Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
Cells of corona radiata remain grouped together by ______.
During embryonic development, the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called ______.
Preparation of sperm before penetration of ovum is ______.
Which of the following contains the actual genetic part of a sperm?
Which one is released from the ovary?
The prostate gland and seminal vehicle perform the function of ______.
After the release of the secondary oocyte, the Graafian follicle develops into ______.
Penetration of the sperm in the ovum is followed by ______
In the process of fertilization, this is true:
Distinguish between human sperm and ovum.
