F0-Domin Activity 2 In an experiment to show co-dominance, cows with white fur (W) were crossed with bulls with red fur (R). All the offspring of the F₁-generation have roan fur (RW). A roan fur consists of patches of white and patches of red fur. Roan cows and roan bulls were crossed and the results are given below. Genotype Number of offspring RR 120 RW 240 ww 120 1. Give the ratio of the different phenotypes shown in the above table. 2. Use the information in the table above to draw a pie-chart showing the proportions of the different genotypes. 18 3. Explain why the cows and bulls with genotype RW have roan fur and not only red or only white fur.

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