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Q. No.Read the following statements (a) to (d) with respect to normal adult human and choose the option with only correct statements.
a.
Interstitial spaces of testis contain Leydig cells and other immunologically competent cells.
b.
Testes are situated inside the abdominal cavity within a pouch called scrotum.
c.
The scrotum helps in maintaining the low temperature necessary for spermatogenesis.
d.
Each lobule of testis contains 250 seminiferous tubules in which sperms are produced.
1. (a) and (b)
2. (b) and (c)
3. (a) and (c)
4. (c) and (d)
Subtopic: Male Reproductive System | Basic Anatomy of Testis |
68%
From NCERT
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Match column-I with column-II and choose the correct option:
a b c d
1. (i) (ii) (iii) (iv)
2. (ii) (iv) (i) (iii)
3. (ii) (iv) (iii) (i)
4. (ii) (iii) (iv) (i)
| Column-I | Column-II | ||
| a. | Milk | (i) | Spermatids are transformed into spermatozoa |
| b. | Primary spermatocyte | (ii) | Stored in the cavity of alveoli |
| c. | Spermiogenesis | (iii) | First menstruation begins at puberty |
| d. | Menarche | (iv) | Periodically undergo meiosis |
1. (i) (ii) (iii) (iv)
2. (ii) (iv) (i) (iii)
3. (ii) (iv) (iii) (i)
4. (ii) (iii) (iv) (i)
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation | Mammary Gland & Lactation |
94%
From NCERT
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Read the following statements carefully and choose the option with only correct statements.
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (d)
| (a) | Spermatogonia produce sperm cells by spermatogenesis that begins at puberty. |
| (b) | All spermatogonia periodically undergo meiosis. |
| (c) | A primary spermatocyte completes first meiotic division during embryonic development. |
| (d) | The secondary spermatocytes have only 23 chromosomes each. |
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (d)
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
82%
From NCERT
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| Assertion (A): | During pregnancy, the level of several 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 foetal growth, metabolic changes in the mother, and maintenance of pregnancy. |
| 1. | Both (A) and (R) are true but (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: Embryonic Development till Gastrulation |
69%
From NCERT
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How many statements given below are correct?
1. 2
2. 1
3. 4
4. 3
| (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. |
2. 1
3. 4
4. 3
Subtopic: Embryonic Development till Gastrulation | Fertilization | Implantation |
65%
From NCERT
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Match column-I with column-II and choose the correct answer:
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(i), d(iii)
3. a(iii), b(i), c(iv), d(ii)
4. a(iv), b(iii), c(ii), d(i)
| Column I | Column II | ||
| a. | Breasts in lactating mothers | (i) | Presence or absence is not a reliable indicator of virginity |
| b. | Colostrum | (ii) | Cushion of fatty tissue covered by skin and pubic hairs |
| c. | Mons pubis | (iii) | Contains several antibodies absolutely essential for newborns |
| d. | Hymen | (iv) | 15-20 mammary lobes each |
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(i), d(iii)
3. a(iii), b(i), c(iv), d(ii)
4. a(iv), b(iii), c(ii), d(i)
Subtopic: Mammary Gland & Lactation | Female Reproductive System-1 | Female Reproductive System-2 | Female External Genitalia |
94%
From NCERT
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Match column-I with column-II and choose the correct option.
1. a(i), b(ii), c(iii)
2. a(iii), b(ii), c(i)
3. a(ii), b(iii), c(i)
4. a(i), b(iii), c(ii)
| Column I | Column II | ||
| a. | Perimetrium | (i) | Inner glandular layer of uterus |
| b. | Myometrium | (ii) | External thin membrane of uterus |
| c. | Endometrium | (iii) | Middle thick layer of smooth muscles |
1. a(i), b(ii), c(iii)
2. a(iii), b(ii), c(i)
3. a(ii), b(iii), c(i)
4. a(i), b(iii), c(ii)
Subtopic: Female Reproductive System-1 | Female Reproductive System-2 |
91%
From NCERT
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Match the following columns I and II and choose the correct option.
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(iii), d(i)
3. a(ii), b(iv), c(i), d(iii)
4. a(iii), b(iv), c(i), d(ii)
| Column I | Column II | ||
| a. | Parturition | (i) | Release of ovum from ruptured Graafian follicle |
| b. | Menopause | (ii) | Delivery of the baby |
| c. | Ovulation | (iii) | Blastocyst becomes embedded in endometrium |
| d. | Implantation | (iv) | Menstrual cycles ceases around age of 50 years in human female |
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iv), c(iii), d(i)
3. a(ii), b(iv), c(i), d(iii)
4. a(iii), b(iv), c(i), d(ii)
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase | Fetal Development & Parturition | Implantation |
94%
From NCERT
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Read the following statements A and B and choose the correct answer from the options given below :
1. Both statement A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
| Statement-A: | High concentration of estrogens will eventually cause release of ovum from the Graafian follicle |
| Statement-B: | In human beings, most of the major organ systems are formed by the end of first trimester |
1. Both statement A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Subtopic: Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
From NCERT
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Read the following statements carefully and choose the option which has only correct statements
(a) The trophoblast layer of blastocyst gets attached with myometrium during implantation
(b) Inner cell mass gets differentiated as the embryo
(c) After attachment, the uterine cells divide rapidly and covers the blastocyst
(d)The blastocyst continues to divide and transforms into morula
(e) Chorionic villi which are surrounded by the uterine tissue, are formed before implantation
1. (a) , (b), (c)
2. (b), (c), (d)
3. (b), (c)
4. (b), (d)
(a) The trophoblast layer of blastocyst gets attached with myometrium during implantation
(b) Inner cell mass gets differentiated as the embryo
(c) After attachment, the uterine cells divide rapidly and covers the blastocyst
(d)The blastocyst continues to divide and transforms into morula
(e) Chorionic villi which are surrounded by the uterine tissue, are formed before implantation
1. (a) , (b), (c)
2. (b), (c), (d)
3. (b), (c)
4. (b), (d)
Subtopic: Embryonic Development till Gastrulation | Implantation |
58%
From NCERT
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