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Which cross will yield four phenotypes in the 1:1:1:1 ratio?. .A] rryy x rryy. B] RrYy x rryy. C] RrYy x RrYy. D] RRYY x rryy
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Which cross will yield four phenotypes in the 1:1:1:1 ratio?. .A] rryy x rryy. B] RrYy x rryy. C] RrYy x RrYy. D] RRYY x rryy

User Mani Jagadeesan
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It's (B). The Punnett square is a 4x1:

_____RY_____Ry_____rY_____ry___
ry____?_______?_____?______?_____

If you fill it out, you'll see 4 different phenotypes...

[(A) produces a 1:0 phenotypic ratio]
User Alejandro Ricoveri
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