Which of the following is not a correct statement about umbilical cord?
Which of the following is not a correct statement about umbilical cord?
- A
It connects the placenta to the embryo
- B
It helps in the transport of substances to and from the embryo
- C
It produces several hormones like hPL, estrogen and progesterone
- D
It has $100\;\%$ foetal blood
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- [AIPMT 1994]