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Unformatted text preview: cells will be white. We also predicted that the diploid homozygous genotype rr would result in red cells. The background information in the packet also states that the diploid heterozygote is white, so we predicted that the diploid genotype Rr would also result in white cells. Based on this, we predicted a phenotypic ratio of 3:1 (3 white for every 1 red). Figure 3: Observed Phenotypes alpha 1 R alpha 2 r a 1 R White White a 2 r White Red Our observed phenotypes matched what we predicted. The homozygous genotype rr did result in red cells, which makes sense. Both of the genotypes RR and Rr resulted in white cells. This means that the gene for white cells is completely dominant over the gene for red cells. The observed phenotypic ratio was 3:1 just like we predicted....
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- Spring '11
- Evolution, Zygosity, rr rr rr