Epigenetics: Evolution in Action

Dr. Victor Corces explains the power of epigenetic changes which can change an organism's original genome on a permanent basis -- a critical process in evolution which was until recently unrecognized.

Dr. Victor Corces is a Arts & Sciences Distinguished Professor and Chair, Department of Biology, at Emory University. Dr. Corces spoke at the 2009 Predictive Health Symposium at Emory University.

Related Links

Corces Lab
http://www.biology.emory.edu/research/Corces/

Woodruff Health Sciences Center
http://www.emoryhealthsci.org

Category:

Science & Technology

Tags:

• epigenetics
• genetics
• evolution
• chromatic
• genes
• gene expression

[Desertphile]

"...an organism's original genome...."

There is no such thing and never was.

[EmoryUniversity]

That phrase is not one used by the speaker but a paraphrase which may be inaccurate. If you have a better way to summarize (another word or phrase for genome), please advise. I hope you can appreciate the video.

[Desertphile]

Greetings. A species' genome certainly changes constantly, even when every allele is fixed (unlikely) and genetic diversity is nill (also unlikely). My objection was to the word "original:" most species, except those on the verge of extinction and those with recent population bottlenecks, have large genetic variations among individuals, all of which combined represent the genome; there is no "original" for the same reason there is no starting point on a circle. Fine video though.