A homozygous claret (ca=ruby eye color), curled (cu=upcurved wings), fluted (fl-creased wings) fruit fly is crossed to a pure-breeding wild-type fly. The F1 females are testcrossed with the following results:

Fluted              4

Claret             173

Curled              26

Fluted, claret     24

Fluted, curled    167

Claret, curled      6

Fluted, claret, curled 298

Wild-type 302

a. Are the loci linked?

b. If so, give the gene order and map distance.