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Tag Archives: What is a Test Cross

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What is a Test Cross: Why is it used (Biology)

BiologyBy William Anderson (Schoolworkhelper Editorial Team)July 2, 20106 Comments

If I handed you a black guinea pig & asked, “What’s its phenotype for fur color?” You would gently hold the guinea pig,  look at it and reply, “Black, you dummy … all you gotta do is look at it”.  And I would say, “Correct, & please don’t call me dummy”. If I handed you…

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