19 noviembre 2014
Researchers have found that the Hox gene program, responsible for directing the development of fins and limbs, is also utilized to develop other body part features of vertebrates, such as barbels and vents in fish. The research indicates that this genetic program, which dates back at least 440-480 million years, is older and more widely utilized than previously thought.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2BIfzVp7vJc/141119084949.htm
