Could epigenetics support Lamarkian Evolution?

  • 1 Replies
  • 2155 Views

0 Members and 1 Guest are viewing this topic.

*

Offline Jennie Brown

  • First timers
  • *
  • 1
    • View Profile
Could epigenetics support Lamarkian Evolution?
« on: 09/10/2009 12:30:04 »
Jennie Brown  asked the Naked Scientists:
   
Hello!  I remember hearing about epigenetics on your program.  I was wondering if this new finding could be logically interpreted as support or partial support for Lamarkian evolution?
 
Jennie Brown
Swanzey, NH

What do you think?

*

Offline DrN

  • Hero Member
  • *****
  • 815
    • View Profile
Could epigenetics support Lamarkian Evolution?
« Reply #1 on: 27/11/2009 23:07:58 »
Epigenetics is the modification of genes without altering the DNA - e.g. acetylation, methylation etc. It is long-term and reversible, but generally occurs in differentiated cells. This means that it's unlikely to carry through the germ cells into the next generation. While experiences as a child, and therefore your parents behaviour, can indeed change our genes for a lifetime through epigenetics, there is no evidence to suggest this can be inherited (or none that I've found).