Question

"Using the following data set from a 3-point testcross of three linked genes, what is the best estimate of the genetic distance between R and T? (the testcross parent contribution rst is not shown): RST 17, rst 17, Rst 246, rST 252, RsT 424, rSt 420, RSt 734, rsT 782. Total sample is 2,892."

Answer 1

The greater number are of parental type and the lowest number are of double cross over type. The middle gene is swapped between the homologous chromosomes during the double cross over.

please look in the image:

30.36 centiMorgan.

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