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Q. No.LH surge:
1.
is a sudden dramatic increase in the levels of LH during the early part of the menstrual cycle and is responsible for ovulation
2.
is a sudden dramatic decrease in the levels of LH during the early part of the menstrual cycle and is responsible for ovulation
3.
is a sudden dramatic decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation
4.
is a sudden dramatic increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
75%
Level 2: 60%+
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When sperm comes in contact with the zona pellucida:
| 1. | The secondary oocyte completes meiosis II |
| 2. | Steps are taken to prevent polyspermy |
| 3. | Zona pellucida ruptures and the oocyte is hatched that can be fertilized |
| 4. | The sperm loses its tail and body |
Subtopic: Fertilization |
Level 3: 35%-60%
Hints
The diagram represents the tertiary follicle. Identify the correct matched-pair :
| 1. | Secondary oocyte arrested at Meiosis I | ||
| 2. | Zona pellucida mode of glycoprotein | ||
| 3. | Trophoblast cells | 4. | Theca internal |
| 5. | Ovarian cortex | 6. | Antrum |
| 7. | Cumulus oophorus | 8. | Corona Radiata |
| 1. | 1,2,4,6,7 | 3. | 2,3,5,7,8 |
| 2. | 2,4,6,7 | 4. | 1,2,3,4,6,7 |
Subtopic: oogenesis |
Level 4: Below 35%
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In the diagram A, B, C, D, and E respectively are :
| 1. | Mammary lobe, Mammary alveolus, mammary duct, ampulla, Lactiferous |
| 2. | Mammary alveolus, Mammary lobe, ampulla, mammary duct, Lactiferous |
| 3. | Mammary duct, ampulla, Lactiferous, Mammary lobe, Mammary alveolus |
| 4. | Ampulla, Lactiferous, Mammary lobe, Mammary alveolus, mammary duct |
Subtopic: Mammary Gland & Lactation |
78%
Level 2: 60%+
Hints
In the hormonal regulation of the male reproductive system:
| 1. | Spermatogenesis starts due to a significant decrease in the secretion of GnRH |
| 2. | LH acts on Sertoli cells and stimulates the secretion of some factors required for effective spermiogenesis |
| 3. | FSH acts on Leydig cells and stimulates the synthesis and secretion of androgens |
| 4. | Androgens stimulate the process of spermatogenesis |
Subtopic: Male Reproductive System |
80%
Level 1: 80%+
Hints
During a menstrual cycle, which of the following hormones reaches its maximum peak secretion level during the luteal phase of the cycle?
| 1. | FSH | 2. | LH |
| 3. | Estrogen | 4. | Progesterone |
Subtopic: Menstrual Cycle: Luteal Phase |
67%
Level 2: 60%+
Hints
The first hormone ever produced by you in your life would be:
| 1. | Androgen-like testosterone |
| 2. | Progesterone which is a precursor of both estrogen and testosterone |
| 3. | Testes determining factor |
| 4. | Human chorionic gonadotropin |
Subtopic: Fetal Development & Parturition |
60%
Level 2: 60%+
Hints
The cleavage divisions in the human embryo may be best described as:
| 1. | Holoblastic, Equal, Indeterminate, Radial |
| 2. | Holoblastic, Unequal, Indeterminate, Radial |
| 3. | Holoblastic, Equal, Indeterminate, Spiral |
| 4. | Meroblastic, Equal, Indeterminate, Spiral |
Subtopic: Embryonic Development till Gastrulation |
65%
Level 2: 60%+
Hints
At the birth of the female child, the follicles in her ovaries contain:
| 1. | Primary oocytes that have been arrested at the S phase of the cell cycle |
| 2. | Primary oocytes that have been arrested at the Prophase I of Meiosis I |
| 3. | Secondary oocytes that have been arrested at the Prophase I of Meiosis I |
| 4. | Secondary oocytes that have been arrested at the Metaphase II of Meiosis II |
Subtopic: oogenesis |
79%
Level 2: 60%+
Hints
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | In humans, sex is determined at the time of fertilization. |
| Reason (R): | The Y chromosome is the male determining factor in humans. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Fertilization |
59%
Level 3: 35%-60%
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