Which of the following is the BEST example of a food chain from the food web above?
grass → grasshopper → shrew → owl

grasshopper → sparrow → hawk

blueberry bush → grass → rabbit → hawk

grasshopper → skunk → owl

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?