| question about diabetes and heredity?
i am assuming that diabetes is recessive, but.. is my punnet scale wrong? according to my punnet scale, if a normal male ( XNY) marries a female with diabetes [heterozygous] (XnXn) then their male offspring all have to have diabetes. (XnY). Because on the scale, XN+Xn= XNXn (carrier female), Y+Xn= XnY (heterozygous male), and those are the only outcomes. so is it true that the male offspring have a 100% chance of getting diabetes, or was my punnet scale wrong? (no mean answers please)
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