Cross AaBbCc to homozygous recessive aabbcc the gene order i

Cross AaBbCc to homozygous recessive aabbcc (the gene order is not necessarily ABC). The % recombination that is the lowest is with aaBbCc and Aabbcc. Which gene is in the middle? What does the phenotype Dominant A Recessive B Dominant C represent? Explain or show work.

There is no additional information about phenotypes.

Solution

AaBbCc X aabbcc

B--A--C: BaC abc aaBbCc

b--a--c: bAc abc Aabbcc

There are three genes A, B, and C (alleles A and a, B and b, C and c) which means complete dominance for all .