Q. Placenta has fetal side and maternal side.

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Q. When does the development of heart begin?

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Q. Embryonic development includes first ___________ of development.

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Q. Development requires _____________

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Q. During which stage do the three primary layers first appear?

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Q. A newborn infant obtains maternal antibodies from _____________

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Q. Human placenta is derived from _____________

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Q. The first movement of fetus and the appearance of hair on head occurs during?

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Q. Which one of the following is not a placental hormone?

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Q. Mother’s milk during lactation is rich in _________

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Q. The zygote undergoes cleavage forming a solid ball of cells of the uniform size called _________

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Q. The third layer to form in gastrulation is ____________

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Q. Development of all organs can be traced in single germ layer.

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Q. The trophoblast gives rise to ___________

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Q. Gastrulation occurs during the 2nd week of embryonic development.

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Q. Cleavage begins at ____________

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Q. The cavity inside the blastula is called as _____________

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Q. The vertebrate embryo develops into hollow ball called as _______________

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Q. The embryo at 16 celled stage is known as ___________

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Q. Blastopore is the opening of _____________

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