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. |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): | Binding of the sperm head on the oolemma is species specific. |
Reason (R): | Oolemma has receptors only for the head of human sperms. |
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): | All mitochondria in the bodily cells of an individual normally derive from the mother alone. |
Reason (R): | The sperm has a large number of mitochondria in the body that are spirally arranged. |
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): | Progesterone, like hCG, is necessary to prevent spontaneous abortion. |
Reason (R): | Progesterone suppresses myometrium contractility. |
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): | 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. |
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. |
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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Which of the following is not a male accessory sex gland?
1. Bulbourethral gland
2. Testis
3. Prostate
4. Seminal vesicles
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