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Q. No.Which of the following cells are haploid?
I: secondary oocytes
II: secondary spermatocytes
III: primary spermatocytes
IV: spermatids
1.
Only I, II and III
2.
Only I, II and IV
3.
Only II, III and IV
4.
I, II, III and IV
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation | Male Reproductive Duct System | Semen and Male Fertility |
89%
From NCERT
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Consider the two statements:
| Statement I: | During the menstrual cycle, progesterone would be at its highest levels just prior to ovulation. |
| Statement II: | During the menstrual cycle, the endometrium would be at its thickest just after ovulation. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Introduction to Menstrual Cycle: 1 | Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
From NCERT
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A positive-feedback between which of the two given hormones leads to the rupture of Graafian Follicle?
1. LH, estrogen
2. FSH, estrogen
3. LH, progesterone
4. FSH, progesterone
1. LH, estrogen
2. FSH, estrogen
3. LH, progesterone
4. FSH, progesterone
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
74%
From NCERT
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During oogenesis, a polar body is formed:
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | before fertilization. |
| II: | after fertilization. |
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: oogenesis |
51%
From NCERT
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Normally, the site of fertilization in humans is:
1. Ampulla of oviduct
2. Isthmus of oviduct
3. Cervical canal
4. Fundus of uterus
1. Ampulla of oviduct
2. Isthmus of oviduct
3. Cervical canal
4. Fundus of uterus
Subtopic: Female Reproductive System-1 | Female Reproductive System-2 |
91%
From NCERT
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Which of the following cell divisions result in the formation of unequal daughter cells?
A. Meiosis I in primary spematocyte
B. Meiosis I in primary oocyte
C. Meiosis II in secondary oocyte
D. Meiosis II in secondary spermatocyte
1. Only A and B
2. Only B and C
3. Only C and D
4. Only A and D
A. Meiosis I in primary spematocyte
B. Meiosis I in primary oocyte
C. Meiosis II in secondary oocyte
D. Meiosis II in secondary spermatocyte
1. Only A and B
2. Only B and C
3. Only C and D
4. Only A and D
Subtopic: oogenesis |
85%
From NCERT
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How many of the given statements regarding the reproductive cycle in the human females are correct?
1. 1
2. 2
3. 3
4. 4
| I: | The first menstruation begins at puberty and is called menarche. |
| II: | In human females, menstruation is repeated at an average interval of about 28/29 days. |
| III: | The cycle of events starting from one menstruation till the next one is called the menstrual cycle. |
| IV: | Cyclic menstruation is an indicator of normal reproductive phase and extends between menarche and menopause. |
2. 2
3. 3
4. 4
Subtopic: Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
93%
From NCERT
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For maintenance of the endometrium, the corpus luteum secretes large amounts of:
| 1. | oestrogen | 2. | progesterone |
| 3. | LH | 4. | FSH |
Subtopic: Menstrual Cycle: Luteal Phase |
93%
From NCERT
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Consider the given two statements:
| Assertion (A): | During pregnancy all events of the menstrual cycle stop and there is no menstruation. |
| Reason (R): | In the absence of fertilisation, the corpus luteum degenerates. |
| 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 |
82%
From NCERT
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Consider the given two statements:
| Assertion (A): | Breast-feeding during the initial period of infant growth is recommended by doctors for bringing up a healthy baby. |
| Reason (R): | The milk produced during the initial few days of lactation is called colostrum. |
| 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: Mammary Gland & Lactation |
65%
From NCERT
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