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Q. No.Given below are two statements:
Statement I:
The release of sperms into the seminiferous tubules is called spermiation.
Statement II:
Spermiogenesis is the process of formation of sperms from spermatogonia.
In the light of the above statements, choose the most appropriate answer from the option given below :
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | The release of sperms into the seminiferous tubules is called spermiation. |
| Statement II: | Spermiogenesis is the process of formation of sperms from spermatogonia. |
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Seminiferous Tubules & Spermatogenesis |
Level 3: 35%-60%
NEET - 2022
Hints
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
Choose the most appropriate answer from the option given below:
| (a) | It results in the formation of haploid gametes. |
| (b) | Differentiation of gamete occurs after the completion of meiosis. |
| (c) | Meiosis occurs continuously in a mitotically dividing stem cell population. |
| (d) | It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary. |
| (e) | It is initiated at puberty. |
| 1. | (b), (c), and (e) only | 2. | (c) and (e) only |
| 3. | (b) and (c) only | 4. | (b), (d) and (e) only |
Subtopic: Seminiferous Tubules & Spermatogenesis | oogenesis |
Level 3: 35%-60%
NEET - 2022
Hints
Match List I with List II:
Choose the correct answer from the options given below:
1. A-(II), B-(III), C-(I), D-(IV)
2. A-(II), B-(III), C-(IV), D-(I)
3. A-(III), B-(II), C-(IV), D-(I)
4. A-(III), B-(II), C-(I), D-(IV)
| List I | List II |
| A. Acrosome | I. Gonadotropin |
| B. Corpus luteum | II. Hyaluronidase |
| C. Leydig cells | III. Estrogen |
| D. Hypothalamus | IV. Testosterone |
Choose the correct answer from the options given below:
1. A-(II), B-(III), C-(I), D-(IV)
2. A-(II), B-(III), C-(IV), D-(I)
3. A-(III), B-(II), C-(IV), D-(I)
4. A-(III), B-(II), C-(I), D-(IV)
Subtopic: Male Reproductive System | Seminiferous Tubules & Spermatogenesis | Semen and Male Fertility | Introduction to Menstrual Cycle: 1 | Menstrual Cycle |
88%
Level 1: 80%+
Hints
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the most appropriate answer from the options given below:
| Assertion (A): | Pregnancy is characterised by metabolic changes in the mother. |
| Reason (R): | During pregnancy, the level of thyroxine is increased in the maternal blood. |
| 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: Fetal Development & Parturition |
61%
Level 2: 60%+
NEET - 2022
Hints
Read the following statements A and B and choose the correct option.
| Statement (A) : | Soon after the placenta is delivered, the infant is also expelled out of the uterus. |
| Statement (B) : | Doctors inject oxytocin to induce delivery of the baby when it is not secreted in adequate amount from maternal pituitary. |
| 1. | Both statements (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: Fetal Development & Parturition |
64%
Level 2: 60%+
Hints
Read the following statements carefully.
How many of the above statements are true with respect to the human reproductive system?
1. 1
2. 3
3. 2
4. 4
| a. | Humans are sexually reproducing and viviparous. |
| b. | The ovaries in human females produce only hormones. |
| c. | The mammary glands are one of the female secondary sexual characters. |
| d. | A normal human sperm is composed of a head, neck, and middle piece only. |
1. 1
2. 3
3. 2
4. 4
Subtopic: Introduction | Spermiogenesis/Sperm Structure/Hormonal Regulation | Mammary Gland & Lactation | Female Reproductive System-1 | Female Reproductive System-2 |
65%
Level 2: 60%+
Hints
Read the following statements (a) to (d) with respect to normal adult human and choose the option with only correct statements.
1. (a) and (b)
2. (b) and (c)
3. (a) and (c)
4. (c) and (d)
| 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. |
2. (b) and (c)
3. (a) and (c)
4. (c) and (d)
Subtopic: Male Reproductive System | Basic Anatomy of Testis |
70%
Level 2: 60%+
Hints
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%
Level 1: 80%+
Hints
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%
Level 1: 80%+
Hints
| 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 |
70%
Level 2: 60%+
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