ManusJustus on 30 June 2010
| Jirakon said:
Natural selection does just what it says; it selects from existing traits. It doesn't create new ones. No matter how a species mutates, whether through deletion, repetition, or interchange it never involves addition. |
New genes are created all the time through gene duplications and gene mutuations.
If you really want to understand, read this:
http://www.nature.com/scitable/topicpage/origins-of-new-genes-and-pseudogenes-835
