New genes are as important as old genes

See:

http://www.ivanhoe.com/channels/p_channelstory.cfm?storyid=25998

Article reads: “Biologists have long assumed, quite reasonably, that ancient genes have survived natural selection because they are essential to life and that new genes are generally less critical to an organism’s development,” Irene Eckstrand, PhD, who manages Dr. Long’s and other evolutionary biology grants at the National Institutes of Health, was quoted as saying. “This important study suggests that this assumption is flawed, unlocking new questions that could lead to a deeper understanding of evolutionary processes and their impact on human health.

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