In Drosophila, a female fly is heterozygous for three mutations, Bar eyes (B), miniature wings (m), and ebony body (e). Note that Bar is a dominant mutation. The fly is crossed to a male with normal eyes, miniature wings, and ebony body. The results of the cross are as follows: 111 miniature 29 wildtype 117 Bar 26 Bar, miniature 101 Bar, ebony 31 Bar, miniature, ebony 35 ebony 115 miniature, ebony Which of the following describes the relationship between these three genes? 1. B, m and e are all unlinked; each gene is on a different chromosome.
2. B and e are linked on the same chromosome; m is on a different chromosome.
3. B, m and e are all linked on the same chromosome.
4. m and e are linked on the same chromosome; B is on a different chromosome.
5. B and m are linked on the same chromosome; e is on a different chromosome.