用进化前提来指导得出如下学说：超保留基因历经沧桑地从老鼠保留到了人，那么一定有什么特别重要的功能，被自然选择下来无法变异。
The paper in question focuses on segments of 'ultraconserved' DNA — sections that have stayed exactly the same throughout recent vertebrate evolution, and are identical in humans, rats and mice (see page 10). The available evidence suggests that this extreme example of DNA conservation is no accident: the sequence stays because there is a strong selective force weeding out mutations in it. In other words, it is likely to be important to its host.

结果，试验结果出乎意料：去掉该基因段的老鼠，吃喝拉萨生殖都毫无问题。
Yet when researchers based at Lawrence Berkeley National Laboratory in California removed four pieces of ultraconserved DNA from different mice, it had absolutely no effect on the rodents (N. Ahituv et al. PLoS Biol. 5, e234; 2007). This counterintuitive result contradicts predictions based on genetic conservation and the shaping of our genomes during evolution.
自然Nature 449, 1 (6 September 2007）最新编辑的。

我在想，如果用创造前提来指导试验，那么关于这些超保留基因的功能应该有什么样设想呢？