Genetic switch for limbs and digits found in primitive fish: Before animals first walked on land, fish carried gene program for limbs
Monday, July 11, 2011 - 16:30
in Biology & Nature
Genetic instructions for developing limbs and digits were present in primitive fish millions of years before their descendants first crawled on to land, researchers report. The successful swap suggests that the recipe for limb development is conserved in species separated by 400 million years of evolution.
