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Umbilical cord in which umbilical artery...

Umbilical cord in which umbilical artery and umbilical veins are present. They contain –

A

100 % foetal blood

B

50 % foetal and 50 % mother's blood

C

100 % mother's blood

D

75 % foetal and 25 % mother's blood

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The correct Answer is:
A
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