The extra-embryonic membranes of a mammalian embryo are derived from
- ATrophoblast
- BFollicle cells
- CFormative cells
- DInner cell mass
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Similar Questions
At what stage of human embryonic development does the heart begin to beat?
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View SolutionThe egg undergoes cleavage and forms:
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View SolutionMatch the following columns regarding human embryonic development:
Column-$I$ (Time of gestation) Column-$II$ (Changes in embryo) $P$. After one month $I$. Major organ systems are formed $Q$. End of second month $II$. Formation of heart $R$. End of three months $III$. Development of limbs and digits $S$. During fifth month $IV$. Movement of fetus and hair on head
| Column-$I$ (Time of gestation) | Column-$II$ (Changes in embryo) |
| $P$. After one month | $I$. Major organ systems are formed |
| $Q$. End of second month | $II$. Formation of heart |
| $R$. End of three months | $III$. Development of limbs and digits |
| $S$. During fifth month | $IV$. Movement of fetus and hair on head |
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View SolutionDuring gastrulation,$.......$ is formed.
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View SolutionIdentify the figure shown below.
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