An individual heterozygous for four genes, AaBbCcDd, is testcrossed to aabbccdd, and 1000 progeny are classified by the gametic contribution of the heterozygous parent as follows: aBCD 42, Abcd 43, ABCd 140, abcD 145, aBcD 6, AbCd 9, ABcd 305, abCD 310. (a) Describe the specific linkage arrangement, if any, […]