Q. No.In the absence of fertilization, corpus luteum:
1.
Stops secreting progesterone but increases the secretion of estrogen
2.
Stops secreting estrogen but increases the secretion of progesterone
3.
Increases the secretion of both progesterone and estrogen
4.
Degenerates
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What happens when a sperm enters the cytoplasm of the secondary oocyte?
1. Release of first polar body
2. Completion of meiosis II
3. Degeneration of polar bodies
4. Dissolution of zona pellucida
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The ovaries are located:
| 1. | In a sac outside the body | 2. | In the lower abdomen |
| 3. | In the upper abdomen | 4. | In the thorax |
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Corpus luteum is:
1. Ruptured Graafian follicle
2. Released ovum surrounded by cells
3. Developing follicle
4. Enzyme-secreting structure in the ovary
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The cessation of menstrual cycles is called as:
| 1. | Menarche | 2. | Thelarche |
| 3. | Pubarche | 4. | Menopause |
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LH surge:
| 1. | is a dramatic sudden increase in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
| 2. | is a dramatic sudden decrease in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
| 3. | is a dramatic sudden decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
| 4. | is a dramatic sudden increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
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Changes in the ovary and the uterus, during the menstrual cycle, are induced by the changes in the levels of secretion of:
| 1. | Ovarian hormones | 2. | Pituitary hormones |
| 3. | Both | 4. | None |
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Zona pellucida is a membrane surrounding:
| 1. | Secondary oocyte | 2. | Secondary follicle |
| 3. | Corona Radiata | 4. | Trophoblast cells |
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What ensures that only one sperm can fertilize the ovum?
| 1. | Corona Radiata | 2. | Ground substance around ovum |
| 3. | Zona pellucida | 4. | Acrosome |
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