In a species of mice a single gene determines fur color. The two alleles for fur color are black (B) and white (W). Which of the following is most likely true if the alleles for fur color show codominance? The BW mice would be black. The BB mice would be white. The BW mice would have black and white patches. The WW mice would have black and white patches.

Transposon can cause mutations in genes at or near the site of transposon insertion. it is possible for these elements to transpose away from their original site, causing a reversion of the mutant phenotype. in some cases, however, even more severe phenotypes appear when these elements excise from this site, due to events at or near the mutant allele. what might be happening to the transposon or the nearby gene to create more severe mutations?