Take this post test to see how much you know about genome evolution.

Find out what you know about genome evolution by taking this pre test.

A slideshow tracing human migration to show that "all living humans originated from populations of ancestors who migrated out of Africa less than 100,000 years ago. Learn how scientists have used genetic markers to trace the migration...

Although pesticides are designed to kill pest populations, they are seldom 100% effective -- a few individuals usually survive and reproduce. These survivors may have a behavioral trait that helps them avoid the pesticide, a biochemical...

Explains what stabilizing selection is and how this type of natural selection actually limits genetic diversity in a population. Presents examples of stabilizing selection in different plants and animals.