Suppose that all offspring with genotype AA survive, half of the offspring with genotype Aa survive, and one fourth of the offspring with genotype aa survive.
We have seen that non independence of alleles (possibly caused by differential mortality of genotypes) can lead to deviations from normal proportions of offspring genotypes. Find the probability that a surviving offspring from a selfing heterozygote with genotype Aa has zero, one, or two A alleles. Which cases follow a binomial distribution?