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Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456 Exercise 15
When working out genetics problems in this and succeeding chapters, always assume that members of the P 1 generation are homozygous, unless the information or data you are given require you to do otherwise.
In a study of black guinea pigs and white guinea pigs, 100 black animals were crossed with 100 white animals, and each cross was carried to an F 2 generation. In 94 of the crosses, all the F 1 offspring were black and an F 2 ratio of 3 black:1 white was obtained. In the other 6 cases, half of the F 1 animals were black and the other half were white. Why? Predict the results of crossing the black and white F 1 guinea pigs from the 6 exceptional cases.
In a study of black guinea pigs and white guinea pigs, 100 black animals were crossed with 100 white animals, and each cross was carried to an F 2 generation. In 94 of the crosses, all the F 1 offspring were black and an F 2 ratio of 3 black:1 white was obtained. In the other 6 cases, half of the F 1 animals were black and the other half were white. Why? Predict the results of crossing the black and white F 1 guinea pigs from the 6 exceptional cases.
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Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
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