Blood flowing in umbilical cord of mammalian embryo is
Blood flowing in umbilical cord of mammalian embryo is
- A
$100\;\%$ maternal
- B
$50\;\%$ maternal and $50\;\%$ foetal
- C
$100\;\%$ foetal
- D
$75\;\%$ foetal and $25\;\%$ maternal
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Reason : Cessation of mitosis is a normal genetically programmed event.
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