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PUNNETT SQUARE. PRODUCT RULE. 1/2T x 1/2T x 1/2 Y x 1/2Y= 1/16 TTYY. Multiple Alleles. Blood type - 4 potential phenotypes, rather than 2 or even 3. More than 2 possible alleles (versions of the gene) I A or I B or i. Phenotypes - O - ii
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PUNNETT SQUARE PRODUCT RULE 1/2T x 1/2T x 1/2 Y x 1/2Y= 1/16 TTYY
Multiple Alleles Blood type - 4 potential phenotypes, rather than 2 or even 3 More than 2 possible alleles (versions of the gene) IA or IB or i Phenotypes - O - ii A - IAIA or IAi B - IBIB or Ibi AB - IAIB