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Q. No.The scrotum helps in maintaining the lower temperature of the testes, which is essential for spermatogenesis. What is the temperature difference between the scrotal sac and the internal body temperature?
1. 1–1.5°C lower
2. 2–2.5°C lower
3. 3–3.5°C lower
4. 4–4.5°C lower
Subtopic: Male Reproductive System |
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The follicular phase of the menstrual cycle is marked by which of the following processes?
| 1. | Corpus luteum formation |
| 2. | Regression of endometrium |
| 3. | LH surge leading to ovulation |
| 4. | Growth of primary follicles and regeneration of the endometrium |
Subtopic: Menstrual Cycle |
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Level 2: 60%+
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Which part of the blastocyst is responsible for attaching to the endometrium during implantation?
1. Inner cell mass
2. Blastocoel
3. Trophoblast
4. Morula
1. Inner cell mass
2. Blastocoel
3. Trophoblast
4. Morula
Subtopic: Implantation |
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During pregnancy, the levels of which of the following hormones increase significantly in maternal blood?
| 1. | Estrogens, progestogens, prolactin, thyroxine |
| 2. | Oxytocin, testosterone, insulin, glucagon |
| 3. | Melatonin, leptin, gastrin, adrenaline |
| 4. | Dopamine, serotonin, erythropoietin, calcitonin |
Subtopic: Embryonic Development till Gastrulation |
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What is the name of the first milk produced by a mother after childbirth, which is rich in antibodies and crucial for newborn immunity?
1. Amniotic fluid
2. Lactose-rich milk
3. Colostrum
4. Casein
1. Amniotic fluid
2. Lactose-rich milk
3. Colostrum
4. Casein
Subtopic: Mammary Gland & Lactation |
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Consider the following statements regarding the layers of the uterus:
Which of the statement(s) given above is/are correct?
1. (a) only
2. (b) only
3. Both (a) and (b)
4. Neither (a) nor (b)
| (a) | The endometrium, the innermost layer of the uterus, undergoes cyclical changes during the menstrual cycle. |
| (b) | The myometrium, composed of smooth muscle, exhibits strong contractions during childbirth. |
Which of the statement(s) given above is/are correct?
1. (a) only
2. (b) only
3. Both (a) and (b)
4. Neither (a) nor (b)
Subtopic: Female Reproductive System-1 |
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Level 1: 80%+
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Which of the following statements regarding sperm structure and function is incorrect?
| 1. | The acrosome contains enzymes that assist in fertilisation. |
| 2. | The middle piece of the sperm is rich in mitochondria to provide energy for motility. |
| 3. | The tail of the sperm plays a crucial role in sperm motility. |
| 4. | The sperm head contains a diploid nucleus necessary for fertilisation. |
Subtopic: Spermiogenesis/Sperm Structure/Hormonal Regulation |
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Which of the following statements regarding the corpus luteum and menstrual cycle is incorrect?
| 1. | The corpus luteum secretes progesterone, which prevents the breakdown of the endometrial lining. |
| 2. | If fertilisation occurs, human chorionic gonadotropin (hCG) maintains the corpus luteum, allowing it to continue hormone secretion. |
| 3. | A decline in progesterone levels after ovulation ensures proper implantation of the fertilized ovum. |
| 4. | The corpus luteum regresses in the absence of fertilisation, leading to menstruation and the initiation of a new cycle. |
Subtopic: Menstrual Cycle |
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Implantation of the human embryo in the uterus occurs at the stage of:
1. Zygote
2. Morula
3. Blastocyst
4. Gastrula
1. Zygote
2. Morula
3. Blastocyst
4. Gastrula
Subtopic: Fertilization | Implantation |
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Normal menstrual bleeding is the direct result of the withdrawal of:
1. Progesterone
2. Oestrogen
3. LH
4. FSH
1. Progesterone
2. Oestrogen
3. LH
4. FSH
Subtopic: Menstrual Cycle: Luteal Phase |
86%
Level 1: 80%+
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