Question

during studies of genes in dorosophilla the persects link, T.H. morgan found. f2 population phenotypic ratio to be deviated from aspected 9:3:3:1. explain the conclusion he arrived at ?

Answer 1

he concluded that genes present on same chromosome show linkage and hence donot show independent assortment during gamete formation. more the tightly linked genes lesser the chance that they get separated during crossing over. thus due to linkage deviation from mendelian ratios was observed