Unseen genome: Gems among the junk

被引:36
作者
Gibbs, WW
机构
关键词
D O I
10.1038/scientificamerican1103-46
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The small part of DNA that contains blueprints for proteins is described. The RNA-only genes that play major roles in the health and development of plants and animals are also discussed. It was observed that the active forms of RNA help to regulate a separate 'epigenetic' layer of heritable information that resides in the chromosomes but outside the DNA sequence.
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页码:46 / 53
页数:8
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