Q. No.In humans, at the end of the first meiotic division, the male germ cells differentiate into
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia
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Which extra embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion
Which one of the following statement is incorrect about menstruation?
| 1. | During normal menstruation, about 40 mL of blood is lost |
| 2. | The menstrual fluid can easily clot |
| 3. | At menopause in the female, there is, an especially, abrupt increase in gonadotropic hormones |
| 4. | The beginning of the cycle of menstruation is called menarche |
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Which part of the ovary in mammals acts as an endocrine gland after ovulation?
| 1. | Graafian follicle | 2. | Stroma |
| 3. | Germinal epithelium | 4. | Vitelline membrane |
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In the human female, menstruation can be deferred by the administration of:
1. LH only
2. Combination of FSH and LH
3. Combination of estrogen and progesterone
4. FSH only
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Withdrawal of which of the following hormones is the immediate cause of menstruation?
| 1. | Estrogen | 2. | FSH |
| 3. | FSH-RH | 4. | Progesterone |
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An oocyte is released from the ovary under the influence of LH :
| 1. | after completing meiosis and before the polar bodies are released |
| 2. | after completing meiosis I and before the release of the polar body |
| 3. | after completing meiosis |
| 4. | after completing meiosis I and after the release of the polar body |
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Both corpus luteum and macula lutea are :
1. found in human ovaries
2. a source of hormones
3. characterized by a yellow colour
4. contributory in maintaining pregnancy
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What structure gets implanted on the wall of the uterus during embryonic development?
| 1. | .svg) |
2. | .svg) |
| 3. | .svg) |
4. | .svg) |
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In the given diagram, identify A, B, C, and D respectively:
| 1. | LH, FSH, Progesterone and Estrogen |
| 2. | FSH, LH, Estrogen and Progesterone |
| 3. | Estrogen, Progesterone, LH and FSH |
| 4. | Progesterone, Estrogen, FSH and LH |
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