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Q. No.How many statements given below are correct?
(i)
Relaxin is secreted by the ovary in the later phase of pregnancy.
(ii)
Inner cell mass differentiates into ectoderm and endoderm just before implantation.
(iii)
Implantation leads to pregnancy.
(iv)
Embryo with 8 to 16 blastomeres is called morula.
1. 2
2. 1
3. 4
4. 3
Subtopic: Embryonic Development till Gastrulation | Fertilization | Implantation |
66%
From NCERT
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The foetal ejection reflex in humans triggers the release of:
1. oxytocin from foetal pituitary
2. human Chorionic Gonadotropin (hCG) from placenta
3. human Placental Lactogen (hPL) from placenta
4. oxytocin from maternal pituitary
1. oxytocin from foetal pituitary
2. human Chorionic Gonadotropin (hCG) from placenta
3. human Placental Lactogen (hPL) from placenta
4. oxytocin from maternal pituitary
Subtopic: Fetal Development & Parturition |
83%
From NCERT
NEET - 2013
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Diagrammatic view of male reproductive system, an unpaired gland is represented by the letter:
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
Subtopic: Male Reproductive System |
79%
From NCERT
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In the diagrammatic section of the ovary shown below:
I. A is a tertiary follicle showing a fluid filled cavity called as blastocoel.
II. B acts as a temporary endocrine gland that produces large amounts of hCG.
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. A is a tertiary follicle showing a fluid filled cavity called as blastocoel.
II. B acts as a temporary endocrine gland that produces large amounts of hCG.
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: Ovary | Introduction to Menstrual Cycle: 1 | Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase | Implantation |
65%
From NCERT
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Assertion (A): In human males, 50 percent of sperms carry the X chromosome while the other 50 percent carry the Y.
Reason (R): Human males have XY sex chromosomes.
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. (A) is false, but (R) is true.
Reason (R): Human males have XY sex chromosomes.
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. (A) is false, but (R) is true.
Subtopic: Sex Determination in Humans |
84%
From NCERT
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| Assertion (A): | Spermiation takes place in epididymis. |
| Reason (R): | Sertoli cells remain attached to spermatozoa in epididymis. |
| 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. |
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
74%
From NCERT
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Assertion (A): Parturition is induced by a complex neuroendocrine mechanism.
Reason (R): The signals for parturition originate from fully developed fetus and placenta
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.
Reason (R): The signals for parturition originate from fully developed fetus and placenta
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.
Subtopic: Fetal Development & Parturition |
56%
From NCERT
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Assertion (A): Placenta act as endocrine gland
Reason (R): It secretes steroidal hormones to maintain structure of corpus luteum.
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.
Reason (R): It secretes steroidal hormones to maintain structure of corpus luteum.
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.
Subtopic: Implantation |
From NCERT
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| Assertion (A): | Ovulation occurs due to LH surge. |
| Reason (R): | LH surge induces completion of meiosis I in primary oocyte. |
| 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. |
Subtopic: oogenesis |
62%
From NCERT
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| Assertion(A): | Seminal plasma lacks spermatozoa. |
| Reason(R): | Seminal plasma contains secretions of seminal vesicles only. |
| 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. |
Subtopic: Male Reproductive System |
From NCERT
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