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Q. No.Which alphabet in the given figure represents the structure that carries two pairs of centrioles?
1. A
2. B
3. C
4. D
Subtopic: Male Reproductive Duct System | Semen and Male Fertility |
59%
From NCERT
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Secretions of epididymis, vas deferens, seminal vesicle and prostate are essential for maturation and motility of sperms. |
| Statement II: | The functions of male sex accessory ducts and glands are maintained by the gonadotropins. |
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation | Male Reproductive Duct System |
From NCERT
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Consider the two statements:
| Assertion (A): | Fertilisation takes place in the ampullary region of the oviduct. |
| Reason (R): | Ampulla is the wider part of the oviduct. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True and (R) correctly explains (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Fertilization |
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From NCERT
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How many of the given statements regarding human embryonic development at various months of pregnancy are correct?
| I: | After one month of pregnancy, the embryo’s heart is formed. |
| II: | The first sign of growing foetus may be noticed by listening to the heart sound carefully through the stethoscope after one month. |
| III: | By the end of the second month of pregnancy, the foetus develops limbs and digits. |
| IV: | By the end of 12 weeks (first trimester), most of the major organ systems are formed. |
| V: | The first movements of the foetus and appearance of hair on the head are usually observed during the fifth month. |
| VI: | By the end of about 24 weeks (end of second trimester), the body is covered with fine hair, eye-lids separate, and eyelashes are formed. |
| 1. | 3 | 2. | 4 |
| 3. | 5 | 4. | 6 |
Subtopic: Fertilization: Part 1 | Fertilization: Part 2 | Implantation : Part 1 | Implantation : Part 2 |
From NCERT
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How many of the given statements regarding human placenta are correct?
| I: | It is formed only by the maternal tissue. |
| II: | It facilitates the supply of oxygen and nutrients to the embryo and also removal of carbon dioxide and excretory/waste materials produced by the embryo. |
| III: | The placenta is connected to the embryo through an umbilical cord which helps in the transport of substances to and from the embryo. |
| IV: | Placenta allows mixing of maternal blood and foetal blood from the middle of the pregnancy. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Fertilization: Part 1 | Fertilization: Part 2 |
61%
From NCERT
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What will be true for the parts labels A and B in the given diagram?
| I: | A is the longest male sex accessory duct and stores sperms. |
| II: | B is the only gland that does not contribute significantly to the composition of the seminal plasma. |
| 1. | Only I is correct | 2. | Only II is correct |
| 3. | Both I and II are correct | 4. | Both I and II are incorrect |
Subtopic: Male Reproductive System |
56%
From NCERT
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Consider the given two statements:
| Assertion: | Scientifically, it is correct to say that the sex of the baby is determined by the father and not by the mother. |
| Reason: | The zygote carrying XX would develop into a female baby and XY would form a male. |
| 1. | Both Assertion and Reason are true and Reason explains the Assertion. |
| 2. | Both Assertion and Reason are true but Reason does not explain the Assertion. |
| 3. | Assertion is true but Reason is False |
| 4. | Assertion is False but Reason is true |
Subtopic: Embryonic Development till Gastrulation |
59%
From NCERT
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Consider the given two statements:
| Assertion (A): | Testes in males and ovaries in females are the primary sex organs. |
| Reason (R): | The primary sex organs are those that are located within the pelvic cavity and the secondary sex organs are the external genitalia. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Introduction | Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation | Female Reproductive System-1 | Female Reproductive System-2 |
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From NCERT
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During pregnancy:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | menstrual flow does not occur. |
| II: | the levels of gonadotropins are very high in the blood of pregnant females. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Introduction to Menstrual Cycle: 1 | Introduction to Menstrual Cycle: 2 |
From NCERT
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Seminal plasma contains:
| I: | secretions of seminal vesicles, prostate and bulbo-urethral glands. |
| II: | sperms |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Male Reproductive System |
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