In Neurospora, the following cross was made: a,B x A,b.  1000 asci are obtained of the following types:

a) Fill in the table above with the segregation pattern for the A and B genes

b) Are genes linked or unlinked? (Tell me how I can know about whether it’s linked or unlinked)

c) Calculate all the relevant map distances, and draw a map indicating the linkage arrangement of the A and B genes