Construct: w expression is governed by a fragment of en promoter extending from -2.4kb to -0.4kb upstream of the transcription start site.
Suppression of w+mC expression in homozygotes, eye colour is lighter than heterozygotes.
The suppression of eye colour is dependent on the proximity of the two copies of the transposon, either in cis or trans.
The suppression of eye colour is dependent on the proximity of the two copies of the transposon, either in cis or trans.