Q. No.During embryonic development, which of the following structures actually differentiates into the embryo?
1. Morula 2. Blastocyst 3. Inner cells mass 4. Trophoblast cells
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The direct cause of ovulation during the menstrual cycle is:
| 1. | A sharp fall in the levels of estrogen |
| 2. | A dramatic rise in the secretion of FSH |
| 3. | The beginning of the secretion of progesterone |
| 4. | A surge in the secretion of LH |
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The ducts of the seminal vesicles in humans:
| 1. | join the vas deferens to form the ejaculatory duct |
| 2. | open into the ejaculatory ducts which continue into the urethra |
| 3. | join each other and the common duct opens into the prostatic duct |
| 4. | transport the stored sperms to the outside through the urethra |
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In humans, the process of spermatogenesis in males and oogenesis in females are similar in:
| 1. | Age at which the processes begin |
| 2. | The number of resultant haploid cells |
| 3. | Cytokinesis |
| 4. | Occurring in respective primary sex organs |
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| 1. | Menstrual → Follicular → Secretory → Ovulatory |
| 2. | Menstrual → Follicular → Ovulatory → Secretory |
| 3. | Ovulatory → Follicular → Secretory → Menstrual |
| 4. | Menstrual → Secretory → Follicular → Ovulatory |
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| 1. | The placenta | 2. | The fetus |
| 3. | Maternal ovary | 4. | Maternal pituitary |
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To induce uterine contractions for parturition, which of the following hormones can be injected into the female?
| 1. | hCG | 2. | Estrogen |
| 3. | Progesterone | 4. | Oxytocin |
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Which of the following hormones is not secreted by the human placenta?
| 1. | hCG | 2. | hGH |
| 3. | hPL | 4. | Progesterone |
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The milk produced during the initial few days of lactation, called colostrum, is essential for the newborn as colostrums contains:
| 1. | a Large amount of glucose | 2. | Anti-infective antibodies |
| 3. | Fats | 4. | Various hormones |
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The signals of fetal ejection reflex originate from:
1. Maternal pituitary
2. Maternal hypothalamus
3. Fully developed fetus and placenta
4. Fetal pituitary
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