Which portion of an organism's genome is most likely to diverge most rapidly over evolutionary time?

Question

Quizplus · Accepted Answer

Noncoding gene regulatory regions are responsible for controlling gene expression and can evolve faster due to their role in responding to environmental changes and adapting to new conditions. In contrast, exons are often highly conserved because they code for functional proteins. Telomeric sequences and sequences at the intron/exon border are important but do not typically evolve as rapidly as gene regulatory regions.

Which Portion of an Organism's Genome Is Most Likely to Diverge