Fruit shape in Shepherd’s purse (Capsella bursa) is of two types- triangular and top shaped. Triangular fruit shape (T) is dominant over top shape (t). Following table summarizes the results of the several crosses. Which pair of strains possess genotype Tt?
a. Strains 2 and 3b. Strains 2 and 4c. Strains 1 and 3d. Strains 1 and 4.
