Advertisements
Advertisements
प्रश्न
Give scientific reason.
There is a menopause when women are 45-50 years old.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
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?
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions:
- Acrosome
- Nucleus
- Middle piece
In meiosis, the number of chromosomes becomes ___________.
Explain two main process in sexual reproduction.
At what stage of development are the gametes formed in newborn male and female?
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
500 spermatozoa are formed from ____________ secondary spermatocytes.
In human beings, the largest cell formed during Oogenesis is ______
Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
Which among the following has 23 chromosomes?
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
The nutritive cells found in seminiferous tubules are ______.
Penetration of the sperm in the ovum is followed by ______
The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:
The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
During oogenesis the meiotic division is arrested at ______ before fertilization.
