Posted: December 31st, 2015

If the ebony gene is located at map unit position 70.7 on chromosome 3, where is the gene for scarlet eye color located? (Give all possible positions.)

The results of the cross between the F1 and ebony body scarlet-eyed flies are as follows:

288 wild-type body, wild-type eye color 102 wild-type body, scarlet eye color 112 ebony body, wild-type eye color 300 ebony body, scarlet eye color

b) Are the genes linked? If so, how many map units apart are they located? Show your work.

c) If the ebony gene is located at map unit position 70.7 on chromosome 3, where is the gene for scarlet eye color located? (Give all possible positions.)