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Q. No.Identify the incorrect statement:
1.
The seminiferous tubules of the testis open into the vasa efferentia through the rete testis.
2.
The vasa efferentia leave the testis and open into the epididymis located along the posterior surface of each testis.
3.
The epididymis leads to the vas deferens that ascend to the abdomen and loop over the urinary bladder.
4.
The epididymis receives a duct from the seminal vesicle and opens into the urethra as the ejaculatory duct.
Subtopic: Male Reproductive System |
71%
From NCERT
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Each ejaculatory duct is formed by the union of:
| 1. | the vas deferens with the duct of the bulbourethral gland |
| 2. | the vas deferens with the duct of the seminal vesicle |
| 3. | the epididymis and the vas deferens |
| 4. | the duct of bulbourethral gland and the urethra |
Subtopic: Male Reproductive System |
79%
From NCERT
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Essential for the maintenance of the endometrium, what hormone is secreted in large amounts by the corpus luteum in a non-pregnant female?
1. hCG
2. Progesterone
3. Estrogen
4. LH
1. hCG
2. Progesterone
3. Estrogen
4. LH
Subtopic: Menstrual Cycle: Luteal Phase |
87%
From NCERT
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Regarding early embryonic development in humans:
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: | The first movements of the foetus and appearance of hair on the head are usually observed during the third month. |
| II: | By the end of about 24 weeks, the body is covered with fine hair, eye-lids separate, and eyelashes are formed. |
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: Embryonic Development till Gastrulation |
78%
From NCERT
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Chorionic villi are derived from:
| 1. | Trophoblast cells | 2. | Granulosa cells |
| 3. | Theca cells | 4. | Maternal tissue |
Subtopic: Embryonic Development till Gastrulation |
85%
From NCERT
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A plasma membrane:
| 1. | envelops only the acrosome of sperm |
| 2. | envelops only the mid piece of sperm |
| 3. | envelops the whole body of sperm |
| 4. | does not envelop any part of the sperm at all |
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
77%
From NCERT
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At puberty:
| 1. | about 30,000-40,000 primary follicles are left in each ovary |
| 2. | about 30,000-40,000 primary follicles are left in both ovaries |
| 3. | about 60,000-80,000 primary follicles are left in each ovary |
| 4. | about 1,00,000 primary follicles are left in both ovaries |
Subtopic: oogenesis |
89%
From NCERT
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What induces the completion of the meiotic division of the secondary oocyte?
| 1. | rupture of the Graafian follicle |
| 2. | insemination |
| 3. | contact of sperm with zona pellucida |
| 4. | entry of sperm into the cytoplasm of the ovum |
Subtopic: Fertilization |
62%
From NCERT
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All the following hormones are produced in women only during pregnancy except:
| 1. | Oxytocin | 2. | Relaxin |
| 3. | hCG | 4. | hPL |
Subtopic: Embryonic Development till Gastrulation |
82%
From NCERT
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The number of correct statements in the given statements is:
| I: | Each seminiferous tubule is lined on its inside by two types of cells called male germ cells and Sertoli cells. |
| II: | Sertoli cells synthesise and secrete testicular hormones called androgens. |
| III: | Leydig cells provide nutrition to the germ cells. |
| IV: | The testis is covered by a dense covering. |
| V: | Each testis has about 250 compartments called testicular lobules. |
1. 2
2. 3
3. 4
4. 5
Subtopic: Male Reproductive System |
71%
From NCERT
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