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प्रश्न
Give scientific reason.
There is a menopause when women are 45-50 years old.
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उत्तर
- The natural cessation of menstruation that occurs between the age of 45-50 years is known as menopause.
- Menopause occurs as the secretion of hormones controlling the functions of the female reproductive system either stops or becomes irregular.
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संबंधित प्रश्न
The process of release of the ovum from a mature follicle is called ______.
Briefly describe the process of spermatogenesis.
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Answer the following questions in short.
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If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
The glandular accessory organ which produces the largest proportion of semen is ____________.
The Androgen Binding Protein (ABP) is produced by ____________.
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Which of the following occurs during maturation phase of spermatogenesis?
Identify the enzyme released by the sperm which has lytic activity.
Spermiation is the process of the release of sperm from ______.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
At what stage of life is oogenesis initiated in a human female?
Which of the following are called dual gland?
After the release of the secondary oocyte, the Graafian follicle develops into ______.
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
During spermatogenesis meiosis occurs in ______.
