A tall pea plant with purple flowers (both determined by dominant alleles) is crossed with a short plant with white flowers. there is no linkage of genes. if the tall, purple-flowered plant is heterozygous for both traits, the offspring will be:
A 1 purple tall:1 white short
B 3 purple tall:1 white short
C 9 purple tall:3 purple short:3 white tall:1 white short
D 1 purple tall:1 purple short:1 white tall:1 white short