Biology, 21.09.2021 14:00, lpssprinklezlps
n Dexter and Kerry cattle, animals may be polled (hornless) or horned. The Dexter animals have short legs, whereas the Kerry animals have long legs. When many offspring were obtained from matings between polled Kerrys and horned Dexters, half were found to be polled Dexters and half polled Kerrys. When these two types of F1 cattle were mated to one another, the following F2 data were obtained: 3/8 polled Dexters 3/8 polled Kerrys 1/8 horned Dexters 1/8 horned Kerrys A geneticist was puzzled by these data and interviewed farmers who had bred these cattle for decades. She learned that Kerrys were true breeding. Dexters, on the other hand, were not true breeding and never produced as many offspring as Kerrys. Provide a genetic explanation for these observations.
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n Dexter and Kerry cattle, animals may be polled (hornless) or horned. The Dexter animals have short...
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