dhe position of the flowers on the stem of the pea plant is determined by a pair of alleles. Those that grow axially are produced by the action of a dominant T allele and those that only grow at the tip of the stem through the action of a recessive t allele. Purple flowers are produced by a dominant B allele and white flowers by a recessive b allele. A heterozygous plant with purple flowers and axillary leaves is crossed with a pure line of the same phenotype. What genotypic and phenotypic ratios are expected in F1 progeny?
