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原文連結
論文資訊
- 類型：已發表論文
- 日期：2014-02-01
摘要
Novel phenotypes can originate either through 突變s in existing genotypes or through phenotypic plasticity, the ability of one genotype to form multiple phenotypes. From molecules to organisms, plasticity is a ubiquitous feature of life, and a potential source of exaptations, adaptive traits that originated for nonadaptive reasons. Another ubiquitous feature is robustness to 突變s, although it is unknown whether such robustness helps or hinders the origin of new phenotypes through plasticity. RNA is ideal to address this question, because it shows extensive plasticity in its secondary structure phenotypes, a consequence of their continual folding and unfolding, and these phenotypes have important 生物 functions. Moreover, RNA is to some extent robust to 突變s. This robustness structures RNA genoty
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