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Trihybrid Crosses. Trihybrid Crosses. Occurs when three different characteristics are involved 64 square punnett square AaBbCc X AaBbCc What is probability of offspring to be aabbcc Each allele pair sorts independently Aa X Aa : Probability of aa = ¼
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Trihybrid Crosses • Occurs when three different characteristics are involved • 64 square punnett square • AaBbCc X AaBbCc • What is probability of offspring to be aabbcc • Each allele pair sorts independently • Aa X Aa: Probability of aa = ¼ • Bb X Bb: Probability of bb = ¼ • Cc X Cc: Probability of cc = ¼ • Rule of Multiplication • ¼ X ¼ X ¼ = 1/64