Both parents have the brown/blue pair of eye-colour genes, and each parent contributes one gene (for one of those colours) to a child. Assume that if the child has at least one brown gene, that colour will dominate and the eyes will be brown. (Actually, the determination of eye colour is somewhat more complex.)
a. List the different possible eye-colour gene combinations that the child could have. Assume that these outcomes are equally likely.
b. What is the probability that a child of these parents will have the blue/blue pair of genes?
c. What is the probability that the child will have brown eyes?