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Q. No.
Assertion(A):
In humans, all copulations cannot lead to fertilisation and pregnancy
Reason (R):
Ferrtilisation can only occur if the ovum and sperms are transported simultaneously to the ampulla
In the light of above statement, choose the correct answer from the options given below :
1.
Both (A) and (R) are true and (R) is not the correct explanation of (A)
2.
Both (A) and (R) are true and (R) is the correct explanation of (A)
3.
(A) is true but (R) is false
4.
(A) is false but (R) is true
Subtopic: Fertilization: Part 1 | Fertilization: Part 2 |
68%
From NCERT
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Match items listed in column-I with those in column-II and choose the correct option:
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(i), d(iii)
3. a(iii), b(iv), c(ii), d(i)
4. a(ii), b(i), c(iv), d(iii)
| Column -I | Column -II | ||
| a. | Infundibulum | (i) | Wider part of oviduct |
| b. | Womb | (ii) | Part of oviduct closer to ovary |
| c. | Ampulla | (iii) | Cushion of fatty tissue |
| d. | Mons pubis | (iv) | Inverted pear-shaped |
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(i), d(iii)
3. a(iii), b(iv), c(ii), d(i)
4. a(ii), b(i), c(iv), d(iii)
Subtopic: Female Reproductive System-1 | Female Reproductive System-2 |
92%
From NCERT
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Match the following columns and select the correct option
1. a(ii), b(i), c(iv), d(iii)
2. a(i), b(ii), c(iii), d(iv)
3. a(iv), b(iii), c(ii), d(i)
4. a(iii), b(iv), c(i), d(ii)
| Column-I | Column-II | ||
| a. | Corpus luteum | (i) | Secretes inhibin in males to inhibit FSH |
| b. | Sertoli cells | (ii) | Secretes a hormone to maintain pregnancy |
| c. | Seminal vesicle | (iii) | Transforms ruptured Graafian follicle into corpus lutem |
| d. | Luteinizing hormone | (iv) | Its secretion constitutes major part of semen |
2. a(i), b(ii), c(iii), d(iv)
3. a(iv), b(iii), c(ii), d(i)
4. a(iii), b(iv), c(i), d(ii)
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
87%
From NCERT
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Please attempt this question first.
Match Column-I with Column-II and select the correct option using the codes given below :
1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(iii), b(i), c(iv), d(ii)
4. a(ii), b(iv), c(i), d(iii)
| Column-I | Column-II | ||
| a. | Clitoris | (i) | Antrum |
| b. | Tertiary follicle | (ii) | Golgi body |
| c. | Inner cell mass | (iii) | Homologous to penis of male |
| d. | Acrosome | (iv) | Stem cells |
1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(iii), b(i), c(iv), d(ii)
4. a(ii), b(iv), c(i), d(iii)
Subtopic: Female External Genitalia | Implantation | oogenesis |
93%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Match column-I with column-II and choose the correct option:
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(i), c(iv), d(iii)
3. a(iv), b(iii), c(ii), d(i)
4. a(ii), b(iii), c(iv), d(i)
| Column-I | Column-II | ||
| a. | Spermiogenesis | (i) | Milk production towards the end of pregnancy |
| b. | Lactation | (ii) | Transformation of spermatids into spermatozoa |
| c. | Chorionic villi | (iii) | Finger-like projections at the edge of the infundibulum |
| d. | Fimbriae | (iv) | Finger-like projections appear on the trophoblast |
2. a(ii), b(i), c(iv), d(iii)
3. a(iv), b(iii), c(ii), d(i)
4. a(ii), b(iii), c(iv), d(i)
Subtopic: Implantation : Part 1 | Implantation : Part 2 | Female Reproductive System-1 | Female Reproductive System-2 |
96%
From NCERT
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Assertion(A): Holoblastic cleavage with almost equal sized blastomeres is a characteristics of placental animals.
Reason(R): Eggs of most mammals including humans are of centrolecithal type.
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): Eggs of most mammals including humans are of centrolecithal type.
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: Embryonic Development till Gastrulation | Fertilization |
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Assertion(A): Parturition is peristalsis expulsion of foetus through birth canal.
Reason(R): Oxytocin stimulates peristalsis in uterus and also ejection of milk.
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): Oxytocin stimulates peristalsis in uterus and also ejection of milk.
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 |
54%
From NCERT
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Assertion(A): Corpus luteum are cells produced by Graafian follicle after ovulation.
Reason(R): It secretes estrogen, which is necessary to maintain pregnancy.
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 estrogen, which is necessary to maintain pregnancy.
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: Introduction to Menstrual Cycle: 1 | Introduction to Menstrual Cycle: 2 | Menstrual Cycle: Luteal Phase | Introduction to Menstrual Cycle |
73%
From NCERT
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Assertion(A): The endometrium of a 35 years old pregnant lady fails to degenerate.
Reason(R): Progesterone concentration increases due to fertilisation.
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): Progesterone concentration increases due to fertilisation.
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: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
66%
From NCERT
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Assertion(A): Corpus luteum start degenerating after fertilisation.
Reason(R): Corpus luteum secretes hormone responsible for ovulation.
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): Corpus luteum secretes hormone responsible for ovulation.
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: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
69%
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