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Home Q & A Board Science-Related Homework Help High School Level Science
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RJW RJW
wrote...
11 years ago
My blood type is o negative but my parents are positive and A positive, my grandparents are all A or B positives with one being o positive. None of my aunts or uncles are rhesus negative either. Is this possible?
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wrote...
#1
11 years ago
Absolutely.  Both O and negative are recessive traits, so they can stay hidden for generations.  Your other family members have O and Rh- alleles, but their A's B's and Rh+ is what is expressed.
wrote...
#2
11 years ago
yes, its possible...
wrote...
#3
11 years ago
Yes.  O is recessive and most likely your parents each carry one recessive O gene
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