Select Chapter Topics:
Q. No.At which state of life the oogenesis process is initiated?
1.
Adult
2.
Puberty
3.
Embryonic development stage
4.
Birth
Subtopic: oogenesis |
86%
Level 1: 80%+
NEET - 2022
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How many Y-chromosomes are present in the 2nd polar body in human beings?
| 1. | 01 | 2. | 00 |
| 3. | 23 | 4. | 02 |
Subtopic: oogenesis |
68%
Level 2: 60%+
NEET - 2022
Hints
Arrange the components of the mammary gland. (from proximal to distal)
(a) Mammary duct
(b) Lactiferous duct
(c) Alveoli
(d) Mammary ampulla
(e) Mammary tubules
Choose the most appropriate answer from the options given below :
1. (c) → (a) → (d) → (e) → (b)
2. (b) → (c) → (e) → (d) → (a)
3. (c) → (e) → (a) → (d) → (b)
4. (e) → (c) → (d) → (b) → (a)
(a) Mammary duct
(b) Lactiferous duct
(c) Alveoli
(d) Mammary ampulla
(e) Mammary tubules
Choose the most appropriate answer from the options given below :
1. (c) → (a) → (d) → (e) → (b)
2. (b) → (c) → (e) → (d) → (a)
3. (c) → (e) → (a) → (d) → (b)
4. (e) → (c) → (d) → (b) → (a)
Subtopic: Mammary Gland & Lactation |
73%
Level 2: 60%+
NEET - 2022
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How many secondary spermatocytes are required to form 400 million spermatozoa?
| 1. | 50 million | 2. | 100 million |
| 3. | 200 million | 4. | 400 million |
Subtopic: Seminiferous Tubules & Spermatogenesis |
63%
Level 2: 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
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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 |
Subtopic: Fetal Development & Parturition |
81%
Level 1: 80%+
NEET - 2013
Hints
Arrange the sequence of different hormones for their role during gametogenesis:
Choose the correct answer from the options given below:
| A. | Gonadotropin LH stimulates synthesis and secretion of Androgen |
| B. | Gonadotropin releasing hormone from hypothalamus |
| C. | Androgen stimulates spermatogenesis |
| D. | Gonadotropin FSH helps in the process of spermiogenesis |
| E. | Gonadotropins from anterior pituitary gland |
| 1. | (E), (A), (D), (B), (C) | 2. | (C), (A), (D), (E), (B) |
| 3. | (B), (E), (A), (C), (D) | 4. | (D), (B), (A), (C), (E) |
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
80%
Level 1: 80%+
NEET - 2023
Hints
Which of these is not an important component of initiation of parturition in humans?
1. Release of oxytocin
2. Release of prolactin
3. Increase in estrogen and progesterone ratio
4. Synthesis of prostaglandins
Subtopic: Fetal Development & Parturition |
50%
Level 3: 35%-60%
NEET - 2021
Hints
Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?
| 1. | Foetus | 2. | Uterus |
| 3. | Graafian follicle | 4. | Corpus luteum |
Subtopic: Fetal Development & Parturition |
Level 3: 35%-60%
NEET - 2021
Hints
Receptors for sperm binding in mammals are present on:
| 1. | Perivitelline space | 2. | Zona pellucida |
| 3. | Corona Radiata | 4. | Vitelline membrane |
Subtopic: Fertilization |
82%
Level 1: 80%+
NEET - 2021
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