...Dexter animals have short legs, whe? 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, one-half were found to be polled Dexters and one-half polled Kerrys. When these two types of F1 cattle were bred with one another, the following F2 data were obtained:
3/8 polled Dexters
3/8 polled Kerrys
1/8 normal Dexters
1/8 normal 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.
Also...
Assign genotypes to the original polled Kerrys and horned Dexters- indicate dominant alleles with a capital letter and recessive alleles with a lower-case letter. Diagram out the F2 cross with a Branch Diagram.
3/8 polled Dexters
3/8 polled Kerrys
1/8 normal Dexters
1/8 normal 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.
Also...
Assign genotypes to the original polled Kerrys and horned Dexters- indicate dominant alleles with a capital letter and recessive alleles with a lower-case letter. Diagram out the F2 cross with a Branch Diagram.