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12 years ago
I've got monohybrid and dihybrid crosses down but my teacher didn't tell me how to get the alleles for the trihybrid punnett squares.

the male's alleles are AA/Bb/Cc

the female's are Aa/Bb/Cc

i'm looking for a tip like the foil method to help me
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wrote...
12 years ago
It works exactly the same as a dihybrid square., you just have more combinations.

Male: ABC, ABc, AbC, Abc (x2 for all, because of the AA)
Female: ABC, ABc, AbC, Abc, aBC, aBc, abC, abc

...........ABC .......ABc .......AbC .......Abc
ABC AABBCC AABBCc AABbCC AABbCc
ABc AABBCc AABBcc AABbCc AABbCc
etc.
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