Question

A series of two-point crosses among fruit flies is carried out between gees for brown eyes (bw), arc wings (a), vestigal wings (vg), ebony body color (e), and curved wings (cv). The following number of nonrecombinant and recombinant progeny were obtained from each crosss:

Genes in cross Progeny (NR) Progeny (R)

a, bw 2796 1434

a, cv 2102 305

a, e 3200 3200

a, vg 5172 2379

bw, cv 4614 1706

bw, e 4150 4150

bw, vg 2224 117

cv, e 3116 3116

cv, vg 2609 823

vg, e 4559 4559

Using these data from the two-point crosses, what is the best genetic map (in m.u.) that can be developed? Specifically, what are the linkage groups and the ordering of the genes in those linkage groups?

Answer 1