Draw genetic diagrams to show the possible genotypes of offspring resulting from a cross between: (18)
a) a red bull and a white cow (4)
b) a red bull with a roan cow (4)
c) a roan bull with roan cow (4)
d) for each of the crosses above state the ratio of the phenotypes and genotypes you would expect from the crosses. (6)
Please draw genetic cross diagram not Punnett square