Chapter 11: Human Heredity

A person who is Rh negative has [ two Rh- alleles | only one Rh- allele ] 17. How many alleles are there for blood type? _____ 18. The alleles for blood type produce different _____ on the surface of red blood cells. 19. People with PKU lack the _____ needed to break down phenylalanine. Can a … ................
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