Atrue-breeding strain of virginia tobacco has dominant alleles determining leaf morphology (m), leaf color (c), and leaf size (s). a carolina strain is homozygous for the recessive alleles of these three genes. these genes are found on the same chromosome as follows: m c s 6 m. u. 17 m. u. an f1 hybrid between the two strains is now backcrossed to the carolina strain. assuming no interference: a. what proportion of the backcross progeny will resemble the virginia strain for all three traits? b. what proportion of the backcross progeny will resemble the carolina strain for all three traits? c. what proportion of the backcross progeny will have the leaf morphology and leaf size of the virginia strain but the leaf color of the carolina strain? d. what proportion of the backcross progeny will have the leaf morphology and leaf color of the virginia strain but the leaf size of the carolina strain?