Q. No.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A):
Detection of hCG in the urine of a pregnant woman is the basis of the pregnancy test.
Reason (R):
The pregnant woman's body increases the synthesis of hCG manifolds.
In the light of the above statements, choose the most appropriate answer from the options given below:
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.
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | Fertilization occurs in the fallopian tube. |
| Reason (R): | The released oocyte must be fertilized within 24 hours of its release. |
| 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. |
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. |
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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 |
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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 |
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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 |
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 |
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 |
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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 |
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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 |
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