Advertisements
Advertisements
Question
Give scientific reason.
There is a menopause when women are 45-50 years old.
Advertisements
Solution
- 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
RELATED QUESTIONS
______ type of reproduction occurs without fusion of gametes.
Describe the process of spermatogenesis with the help of diagram.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Identify the given image and label its parts marked as a, b, c and d
Which of the following enter the maturation phase of oogenesis?
What is the location of oogenesis?
In human beings, the largest cell formed during Oogenesis is ______
Conversion of spermatid into sperm is called as _______.
After ovulation, Graafian follicle regresses into ______.
There is no cell division involved in ______.
Corona radia is made up of ______.
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
At what stage of life is oogenesis initiated in a human female?
Layers of an ovum from outside to inside is ______.
After the release of the secondary oocyte, the Graafian follicle develops into ______.
Mark the odd one.
In the process of fertilization, this is true:
In spermatogenesis, at the end of the first meiotic division ______ are formed.
Given below are two statements.
- Statement I: The spermatids are non-motile and non-functional which get transformed into functional spermatozoa by the process of spermiogenesis.
- Statement II: During the process of this change, the spermatids remain held to each other and to Leydig's cells by cytoplasmic bridges.
In light of the above statements, select the correct answer from the option given below.
