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25 September, 20:33

A woman who can roll her tongue (presumably dominant) is married to a man who cannot. Two of their four children can roll their tongues and two cannot. If A = roll tongue and a = cannot roll tongue, then what is the genotype of the parents?

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  1. 25 September, 20:52
    0
    50-50%
  2. 25 September, 20:54
    0
    sorry i dont know good luck tho
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