iOS app Android app

Epigenetic Transgenerational Inheritance

Dan Hartl, Sewall Wright, and the Role of "Ecological Opportunity" in Evolution

James A. Shapiro | Posted 11.12.2012 | Science
James A. Shapiro

Molecular analysis of genome regulation and change have uncovered additional pathways for ecological input into the evolutionary process.

Epigenetics I: Turning a DNA Packaging Problem Into a Developmental Control System

James A. Shapiro | Posted 09.08.2012 | Science
James A. Shapiro

Two postings back, I promised a commenter called Sierkovitz that I would discuss epigenetics. This is an important subject with major implications for understanding natural genetic engineering in evolution.

The Chemical Exposure That Keeps Going and Going and Going

Bill Chameides | Posted 08.04.2012 | Green
Bill Chameides

For many years it was thought that our genes were the whole game -- the stuff that determined our appearance, our aptitudes, and even our susceptibility to disease. But we now know it's more complicated than that. It turns out that not all of our genes are active. Some are turned "on" and others are turned "off."