| 词条 | Gene density |
| 释义 |
In genetics, the gene density of an organism's genome is the ratio of the number of genes per number of base pairs, usually written in terms of a million base pairs, or megabase (Mb). The human genome has a gene density of 12-15 genes/Mb, while the genome of the C. elegans roundworm is estimated to have 200.[1] Seemingly simple organisms, such as bacteria and amoebas, have a much higher gene density than humans. Bacterial DNA has a gene density on the order of 500-1000 genes/Mb. This is due several factors, including that the fact that bacterial DNA has no introns. There are also fewer codons in bacterial genes.[2] See also
References1. ^{{cite web |url=https://www.sciencedaily.com/articles/g/gene.htm |title=Science Reference: Gene |publisher=Science Daily |accessdate=2013-10-15 }} 2. ^{{cite web |url=http://www.lehigh.edu/~jas0/G16.html |title=Genomes of Bacteria |first=Jeff |last=Sands |date=October 22 |publisher=Lehigh University |accessdate=2013-10-15 }} 1 : Genes |
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