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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Implantation in humans occurs at the stage of:
1. | Zygote | 2. | Morula |
3. | Blastocyst | 4. | Gastrula |
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Statement I: | (a) is released from the ovary during ovulation and has a secondary oocyte. |
Statement II: | (b), (c), and (d) show cleavage divisions, and (e) is morula. |
Statement III. | (g) is blastocyst and (h) shows implantation. |
1. | Only Statement I |
2. | Only Statement I and Statement III |
3. | Only Statement II and III |
4. | Statement I, Statement II, and Statement III |
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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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