The stem cells which have the potency to give rise to all tissues and organs are formed from:
- ATrophoblast
- BUmbilical cord
- CInner cell mass
- DPlacenta
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The embryo of man is protected by
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View SolutionPlacenta acts as an endocrine tissue and produces several hormones like:
$A.$ Human chorionic gonadotropin $(hCG)$
$B.$ Human placental lactogen $(hPL)$
$C.$ Estrogens
$D.$ Progesterone
$A.$ Human chorionic gonadotropin $(hCG)$
$B.$ Human placental lactogen $(hPL)$
$C.$ Estrogens
$D.$ Progesterone
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View SolutionAssertion: Corpus luteum degenerates in the absence of fertilization.
Reason: Progesterone level decreases.
Reason: Progesterone level decreases.
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View SolutionThe gestation period in human beings is about:
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View SolutionDuring embryogenesis,the zygote undergoes:
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