Determine the recombination frequency between two genes

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Shown below are data from a dihybrid cross involving two linked genes. From these data, determine the recombination frequency between these two genes. P0s are homozygous.
P0 gray hair, long tail xblue hair, short tail
F1 blue hair, short tail x blue hair, short tail

F2 blue hair, short tail 1089
blue hair, long tail 113
gray hair, short tail 109
gray hair, long tail 289

 

Reference no: EM1394705

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