Suppose a geneticist uses a three-point testcross to map three recessive, linked hummingbird wing-shape mutations called tk, f, and s, where tk is associated with thick wings; f is associated with flat wings; and s is associated with sharp wings. He first crosses homozygous sharp birds to homozygous thick, flat birds. Next, he backcrosses the F1 progeny to thick, flat, sharp birds. He obtained the following results.Given this data, label the progeny phenotypic classes as either parental, single crossover (SCO), or double crossover (DCO) recombinant types. Each label may be used multiple times. Two classes have already been filled in for you.Number 781 821 189 191 Recombinant type sharp thick, flat flat thick, sharp thick flat, sharp thick, flat, sharp wild type DC parental SCO SCO 27 SCO 26.