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Q. No.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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Consider the given two statements:
| Statement I: | It is scientifically correct to say that the sex of the baby is determined by the father and not by the mother. |
| Statement II: | The sex chromosome pattern in the human female is XX and that in the male is XY. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Sex Determination in Humans |
95%
From NCERT
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At implantation, which of the following becomes embedded in the endometrium of the uterus leading to pregnancy?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Female Reproductive System-1 | Female Reproductive System-2 |
87%
From NCERT
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Chorionic villi are finger-like projections that appear, after implantation, on:
1. the inner cell mass
2. the trophoblast
3. the decidua
4. the embryonic endoderm
1. the inner cell mass
2. the trophoblast
3. the decidua
4. the embryonic endoderm
Subtopic: Female Reproductive System-1 | Female Reproductive System-2 |
85%
From NCERT
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Identify the incorrectly matched pair:
1. Only I and III
2. Only II
3. Only III
4. Only I and II
| I: | The embryo’s heart is formed | After one month of pregnancy |
| II: | Limbs and external genital organs are well-developed |
By the end of the second month of pregnancy |
| III: | First movements of the foetus | During the fifth month |
1. Only I and III
2. Only II
3. Only III
4. Only I and II
Subtopic: Fertilization | Implantation |
71%
From NCERT
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Foetal ejection reflex at parturition triggers the release of:
1. hCG by the placenta
2. Oestrogen by maternal ovary
3. Oxytocin by maternal pituitary
4. Progesterone by placenta
1. hCG by the placenta
2. Oestrogen by maternal ovary
3. Oxytocin by maternal pituitary
4. Progesterone by placenta
Subtopic: Fetal Development & Parturition |
94%
From NCERT
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Consider the given two statements:
| Assertion (A): | During pregnancy the levels of other hormones like estrogens, progestogens, cortisol, prolactin, thyroxine, etc., are increased several-folds in the maternal blood. |
| Reason (R): | Increased production of these hormones is essential for supporting the fetal growth, metabolic changes in the mother and maintenance of pregnancy. |
| 1. | Both (A) and (R) are True and (R) explains (A). |
| 2. | Both (A) and (R) are True but (R) does not explain (A). |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is true |
Subtopic: Fertilization: Part 1 | Fertilization: Part 2 | Implantation : Part 1 | Implantation : Part 2 |
95%
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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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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