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Which of the following BEST describes a similarity between T. Morgan's linkage experiment and Mendel's dihybrid...

Which of the following BEST describes a similarity between T. Morgan's linkage experiment and Mendel's dihybrid cross? Group of answer choices Both experiments involved a test cross to determine the genotype of the F1 individuals. Both experiments involved crossing two true-breeding parents to produce a hybrid that was heterozygous at two loci. Both experiments involved crossing F1 individuals together to produce F2 offspring in a 1:1:1:1 ratio. Both experiments resulted in F2 phenotypes in a 9:3:3:1 ratio.m

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