Question: BIOLOGY QUESTION
Nowadays they look at the chromosomes which allows parents to
know if the fetus …


BIOLOGY QUESTION

Nowadays they look at the chromosomes which allows parents to
know if the fetus is healthy or not. Down syndrome is a big example
(Trisomy 21). It’s information that allows the parents to make an
informed decision before birth. Now there’s something else that can
be done in the first trimester. They take a sample of blood from
the mother which will have the child’s cells blood.

QUESTION:

How are they able to differentiate the mother’s blood from the
child’s blood?

Please give as detailed of an answer as possible. Thank you.

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