Biology
Biology, 16.12.2020 01:40, imatrueguyp612be

Your friend has a blood type of B, but he doesn’t know what his Rh factor is. One of his parents is B-, and one is O+. Can you know for sure what his Rh factor is? Why or why not?

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Your friend has a blood type of B, but he doesn’t know what his Rh factor is. One of his parents is...

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