In 1919, calvin bridges began studying an x-iinked recessive mutation causing eosin-colored eyes in drosophila. within an otherwise true-breeding culture of eosin-eyed flies, he noticed rare variants that had much lighter cream-colored eyes. by intercrossing these variants, he was able to make a true-breeding cream-eyed stock. bridges now crossed males from this cream-eyed stock with true-breeding wild- type females. all the f1 progeny had red (wild-type) eyes. when f1 flies were intercrossed, the f2 progeny were 104 females with red eyes, 52 males with red eyes, 44 males with eosin eyes, and 14 males with cream eyes. assume this represents an 8: 4: 3: 1 ratio. a. formulate a hypothesis to explain the f1 and f1 results, assigning phenotypes to all possible genotypes. b. what do you predict in the f1 and f2 generations if the parental cross is between true-breeding eosin- eyed males and true-breeding cream-eyed females? c. what do you predict in the f1 and f2 generations if the parental cross is between true-breeding eosin- eyed females and true-breeding cream-eyed males?