Q. No.During the follicular phase of the menstrual cycle, which of the following occur?
I:
The primary follicle grows and becomes a fully mature Graafian follicle.
II:
The endometrium of the uterus regenerates through proliferation.
1.
Only I
2.
Only II
3.
I and II
4.
None
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Consider the following statements:
| I: | Menstruation only occurs if the released ovum is not fertilized. |
| II: | Lack of menstruation always indicates pregnancy. |
Of the given statements, the correct statements is/are:
| 1. | I only | 2. | II only |
| 3. | I and II | 4. | None |
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The menstrual cycle starts with the:
| 1. | Follicular phase | 2. | Menstrual phase |
| 3. | Ovulatory phase | 4. | Secretory phase |
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Cleavage is:
| 1. | Dissolution of the zona pellucida |
| 2. | A specialized mitotic division in the late fetus |
| 3. | A specialized meiotic division in the late fetus |
| 4. | A specialized mitotic division in the zygote and early embryo |
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Morula is a solid ball of cells during early embryonic development and consists of:
| 1. | 4 – 8 cells | 2. | 8 – 16 cells |
| 3. | 24 – 30 cells | 4. | 60 – 72 cells |
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The trophoblast cells of the blastocyst form:
| 1. | Embryo | 2. | Umbilical cord |
| 3. | Placenta | 4. | Teratoma |
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During pregnancy the levels of thyroxin:
1. Increase several folds in maternal blood
2. Increases several folds in fetal blood
3. Decreases several folds in maternal blood
4. Decreases several folds in fetal blood
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The fetus develops limbs by the end of:
1. One month of pregnancy
2. Two months of pregnancy
3. First trimester of pregnancy
4. Second trimester of pregnancy
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The correct sequence of development of embryonic stages in humans is:
| 1. | Zygote → Blastula → Blastocyst |
| 2. | Zygote → Gastrula → Blastula |
| 3. | Zygote → Blastocyst → Gastrula |
| 4. | Zygote → Gastrula → Blastocyst |
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