Answer
Alu elements are transposons, at least some copies of which help to regulate gene expression. If some event or events were to have led to more transposon jumping within the human genome, it would lead to more copies if Alu, which could cause a large divergence in gene regulation/expression between humans and chimpanzees.
Work Step by Step
Review Concept 21.4 on Alu elements and think about how differences in gene expression (regulation) lead to differences in the various characteristic features of organisms, promoting divergence of species.
