In a hypothetical organism, a gene exhibits incomplete dominance, where the homozygous dominant genotype (AA) produces red flowers, the homozygous recessive genotype (aa) produces white flowers, and the heterozygous genotype (Aa) produces pink flowers. If two heterozygous individuals (Aa) are crossed, what is the probability that the offspring will exhibit the dominant phenotype?
Calculate the expected genotypic and phenotypic ratios from this cross and determine the proportion of offspring that show the dominant phenotype.