Two linked genes studied by Professor Barrett's lab control

Last updated: 7/30/2022

Two linked genes studied by Professor Barrett's lab control style length in a plant with an epistatic interaction, where long-styled plants are homozygous ssmm, mid-styled plants require at least one dominant Mallele, while the short-styled phenotype shows dominant epistasis where at least one S allele leads to the S morph. A cross is performed between an inbred short-styled SSMM plant and an inbred long-styled plant, and the F1 generation is backcrossed to a long-styled plant. If the two genes are 3 cM apart, what proportion of the progeny will have the mid-styled phenotype? A) 1.5% B) 3% C) 97% D) 98.5%