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प्रश्न
Give Reasons
Most often only one embryo is formed at a time although there are two ovaries in women. Explain.
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उत्तर
One ovum under the influence of hormones is released alternatively every month.
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संबंधित प्रश्न
Write two major functions of ovary.
How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?
In female, after how much time after fertilization, does the fertilized egg get implanted in the
uterine wall?
Complete the paragraph with the help of words given in the bracket.
(Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, estrogen, progesterone, corpus luteum)
Growth of follicles present in the ovary occurs under the effect of ______. This follicle secretes estrogen. ______ grows/regenerates under the effect of estrogen. Under the effect of ______, fully grown up follicle bursts, ovulation occurs and ______ is formed from remaining part of follicle. It secrets ______ and ______. Under the effect of these hormones, glands of ______ are activated and it becomes ready for implantation.
Name the following:
The organ of female in which the foetus develops.
Complete the table.
| Sex/Gender | Reasons of infertility |
| Female | |
| Male |
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Which hormone induces the rupture of the mature Graafian follicle?
What are the functions of the ovaries and uterus in the female reproductive system?
Female reproductive organs and associated functions are given below in column A and B. Fill the blank boxes.
| Column A | Column B |
| Ovaries | Ovulation |
| Oviduct | a |
| b | Pregnancy |
| Vagina | Birth |
In absence of fertilization, corpus luteum degenerates into ______.
