摘要
＂Why do humans have so few 125 most compelling questions genes？＂ This is one of the that will face scientific in- quiry over the next quarter-century, according to the list collected by Science in 2005. As we know from the Human Genome Project, less than 2% of the human genome con- tains protein-coding genes, while the other 98% is com- posed of non-protein-coding DNA regions. However, what if there are hidden treasures besides DNA elements for rep- lication or transcription？ Therefore, the investigation of ＂the dark genome＂ was placed in the top 10 ＂Insights of the decade＂ that Science released in 2010. Scientists have dis- covered that innumerable non-protein-coding RNA （ncRNA） genes, which were previously thought to be ＂junk DNA＇＂ in the genome, are actually transcribed and may bestow im- portant biological functions.
"Why do humans have so few genes?"This is one of the125 most compelling questions that will face scientific inquiry over the next quarter-century,according to the list collected by Science in 2005.As we know from the Human Genome Project,less than 2%of the human genome contains protein-coding genes,while the other 98%is composed of non-protein-coding DNA regions.However,
