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Biology, 08.12.2020 19:40 windline21991

Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. John is an empty square with a x Upper H Y genotype.

Based on the pedigree that is shown, which describes John?
carrier for hemophilia
expresses hemophilia
does not have hemophilia
expresses hemophilia and died of complications

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