Draw a preliminary linkage map of the three loci. What is their order? (E.g. is the forked locus between yellow and cross-veinless, or outside this region?) . 

As this is a preliminary linkage map - do not account for double crossovers. You should base the distances on this map off your map distances calculated in Q4. Provide map distances to one decimal place.

Either scan or take a photo of the map, and upload it to Moodle as a JPEG.