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. |
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): | 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. |
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. |
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. |
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. |
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. |
Assertion (A): | In a female with 29 days menstrual cycle, ovulation occurs on day fourteen. |
Reason (R): | The preovulatory phase of the menstrual cycle is of a fixed duration of 14 days. |
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): | Cleavage increases the number of cells and nuclear mass without increasing the cytoplasmic mass. |
Reason (R): | With each successive subdivision, there is roughly half the cytoplasm in each daughter cell than before that division. |
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. |
What structure gets implanted on the wall of the uterus during embryonic development?
1. | |
2. | |
3. | |
4. | |
For normal fertility, what percent of the sperm in ejaculate must exhibit vigorous motility?
1. | 20 | 2. | 30 |
3. | 40 | 4. | 60 |