From Science Daily (September 2, 2009):Discovery Of Novel Genes Could Unlock Mystery Of What Makes Us Uniquely Human
"they estimate there may be approximately 18 human-specific genes that have arisen from non-coding DNA during human evolution."
What we use to refer to as "junk DNA" (non-coding) actually may have a purpose after all in expressing traits. Researchers are unsure of the function of these new genes and corresponding proteins they code for, but they speculate that they are specific to humans.
posted by Brie
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