Assertion (A): Parturition is induced by a complex neuro endocrine meachanism.
Reason (R): At the end of gestation period, the maternal pituitary releases prolactin which causes uterine contractions.

1. Both (A) and (R) are True and (R) is the correct explanation of (A)
2. Both (A) and (R) are True and (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 |
 85%
Level 1: 80%+
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Match the following columns and select the correct option:

Column-I Column-II
(a) Ovary (i) Human chorionic gonadotropin
(b) Placenta (ii) Estrogen & Progesterone
(c) Corpus luteum (iii) Androgens
(d) Leydig cells (iv) Progesterone only
 
Options: (a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (i) (ii) (iii) (iv)
3. (i) (iii) (ii) (iv)
4. (ii) (i) (iv) (iii)
Subtopic:  Seminiferous Tubules & Spermatogenesis | Ovary | Menstrual Cycle: Luteal Phase | Fetal Development & Parturition |
 92%
Level 1: 80%+
NEET - 2020
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Links

Seminal plasma, the fluid part of semen, is contributed by
I. Seminal vesicle                               
II. Prostate
III. Urethra                                       
Iv. Bulbourethral gland

1. I and II

2. I,II and IV

3. II, III and IV

4.  I and IV

Subtopic:  Male Reproductive Duct System |
 79%
Level 2: 60%+
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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.
Subtopic:  Seminiferous Tubules & Spermatogenesis |
Level 3: 35%-60%
NEET - 2022
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Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
(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.
Choose the most appropriate answer from the option given below:
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
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Match List I with List II:
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%+
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
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.
In the light of the above statements, choose the most appropriate answer from the options given below:
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.
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.
How many of the above statements are true with respect to the human reproductive system?
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%+
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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 |
 70%
Level 2: 60%+
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