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3.6 describe the inheritance of sex-linked genes, and genes that exhibit co-dominance and explain why these do not produce simple Mendelian ratios

describe the inheritance of sex-linked genes, and genes that exhibit co-dominance and explain why these do not produce simple Mendelian ratios

All offspring have normal sight. But if the female is a carrier for colour blindness and crosses with a normal male then 50 % of the males will be colour blind and none of the females.

  XN X n
XN XN XN XN X n
Y XN Y X n Y