Vestigial black brown fly is mated with a wild type fly

Reference no: EM13177276

On chromosome of the fruit fly there are three linked genes: vestigial, black, brown or bl-vg-br. In my parental cross there a vestigial black brown fly is mated with a wild type fly. All F1 are wild type. The F2 are the following:

1675 +++
23 bl vg br
176 bl ++
13 + vg br
57 ++ br
52 bl vg +
93 + vg +
17 bl + br

Based on this data, could you help me construct a map of the genes? In addition, the data should fit a 3:1 ratio, based on a chi square analysis, does it?

Reference no: EM13177276

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