Q. No.At the birth of the female child, the follicles in her ovaries contain:
1.
Primary oocytes that have been arrested at the S phase of the cell cycle
2.
Primary oocytes that have been arrested at prophase I of meiosis I
3.
Secondary oocytes that have been arrested prophase I of meiosis I
4.
Secondary oocytes that have been arrested at metaphase II of meiosis II
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. |
2. Only II
3. I and II
4. None
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 |
The menstrual cycle starts with the:
| 1. | Follicular phase | 2. | Menstrual phase |
| 3. | Ovulatory phase | 4. | Secretory phase |
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 |
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 |
The trophoblast cells of the blastocyst form:
| 1. | Embryo | 2. | Umbilical cord |
| 3. | Placenta | 4. | Teratoma |
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
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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