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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
Women are often blamed for producing female children. Consequently, they are ill-treated and ostracized. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions:
- Acrosome
- Nucleus
- Middle piece
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Answer the following type of question Assertion (A) and Reason (R).
(A) - Head of the sperm consists of acrosome and mitochondria.
(R) - Acrosome contains spiral rows of mitochondria.
Mention the differences between spermiogenesis and spermatogenesis.
Formation of ____________ is an indication of the termination of oogenesis.
Which of the following occurs during maturation phase of spermatogenesis?
In human beings, the largest cell formed during Oogenesis is ______
Which of the following contains a fluid filled cavity called antrum?
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
Head of epididymis is called as ______.
The prostate gland and seminal vehicle perform the function of ______.
In the process of fertilization, this is true:
Growth hormone of pituitary is more effective in ______.
Capacitation refers to changes in the ______.
How many primary oocytes produce one oogonia?
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
