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In a pedigree:=a square means male, a circle means female, an unshaded circle means that doesn't have traits and a shaded square means has traits.==the horizontal line describe that they are parents and vertical line describes that they are the offspring of that parents.=

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Q: Define the sumbols used in a pedigree a square a circle an unshaded circle a shaded square a horizontal line and a vertical line?
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