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Q. No.Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A):
Sperms constitute the majority of the volume of the semen ejaculated.
Reason (R):
There are about 300 million sperms per ml of the ejaculate.
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.
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | It is important that the secondary oocyte aquires almost all of the cytoplasm from the primary oocyte. |
| Reason (R): | This increases its chances of sustaining the early embryo should the oocyte be fertilized. |
| 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: oogenesis |
71%
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | In the absence of fertilization, the corpus luteum degenerates into a corpus albicans. |
| Reason (R): | The levels of estrogen and progesterone are highly reduced towards the end of the luteal phase. |
Choose the most appropriate answer:
| 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: Menstrual Cycle: Luteal Phase |
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | If the pituitary gland is removed, spermatogenesis can still be initiated by follicle stimulating hormone (FSH) and testosterone. |
| Reason (R): | In contrast to FSH, LH appears to have little role in spermatogenesis outside of inducing gonadal testosterone production. |
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. |
Subtopic: Seminiferous Tubules & Spermatogenesis |
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | LH is necessary to maintain luteal function for the second two weeks of the menstrual cycle. |
| Reason (R): | If fertilization does not occur, LH is continued to be secreted in low concentration in the luteal phase. |
| 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: Menstrual Cycle: Luteal Phase |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | Young women have a lower incidence of heart disease as compared to post-menopausal women. |
| Reason (R): | Estrogen has a vasculo-protective action which helps in preventing atherosclerosis. |
| 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. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Introduction to Menstrual Cycle: 2 |
77%
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R)
Choose the most appropriate answer:
| Assertion (A): | Progesterone is sometimes called the "hormone of pregnancy". |
| Reason (R): | It is secreted in large amounts first by corpus luteum and later by placenta during pregnancy. |
| 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: Fetal Development & Parturition |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | hCG can also be used clinically to induce ovulation in the ovaries as well as testosterone production in the testes. |
| Reason (R): | hCG resembles FSH in function. |
| 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. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Male Reproductive System | Female Reproductive System-1 |
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | The fluid lying between cells surrounding the released secondary oocyte has progesterone that has an important role to play in fertilization. |
| Reason (R): | Progesterone in the fluid acts on the uterine endometrium to make it suitable for implantation. |
| 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: Part 1 |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | Though sperm acquire the capability of motility in the epididymis, they do not move with their flagella in the male ducts. |
| Reason (R): | Only spermatozoa that have passed through the epididymis are mature enough to be capable of motility. |
| 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. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
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