. A cross between a purebred black mouse and a purebred white mouse yields all black...
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. A cross between a purebred black mouse and a purebred white mouse yields all black F, offspring. These black F, sibling mice are crossed to produce an F, generation. You observe the following F phenotypic ratio: White: 22 Black: 175 Gray: 114 a. Draw out the crosses described above, showing the genotypes of the parents, F, and F.. b. You cross white mice from the F, generation X black mice from the F, generation. What is the probability of getting black offspring from this cross? 2. You cross a purebred red-eyed mouse with a purebred yellow-eyed mouse and you get all red- eyed Fs. When you then self the Fs you get an F. generation composed of the following: 17 yellow eyes, 207 red eyes, and 50 blue eyes. a. Give the genotypes of F, and F.; i.e. draw out the cross. b. What is the simplified ratio? c. How does this ratio arise? . A cross between a purebred black mouse and a purebred white mouse yields all black F, offspring. These black F, sibling mice are crossed to produce an F, generation. You observe the following F phenotypic ratio: White: 22 Black: 175 Gray: 114 a. Draw out the crosses described above, showing the genotypes of the parents, F, and F.. b. You cross white mice from the F, generation X black mice from the F, generation. What is the probability of getting black offspring from this cross? 2. You cross a purebred red-eyed mouse with a purebred yellow-eyed mouse and you get all red- eyed Fs. When you then self the Fs you get an F. generation composed of the following: 17 yellow eyes, 207 red eyes, and 50 blue eyes. a. Give the genotypes of F, and F.; i.e. draw out the cross. b. What is the simplified ratio? c. How does this ratio arise?
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