大麦突变体的获得和深入研究是开展大麦基因克隆和功能研究的关键，是利用生物技术手段改良大麦农艺性状的基础。
Acquiring barley mutants and research on them was key for gene clone and function analysis, and was the base of improvement for agricultural character using biotechnology.
切斯勒说，这项研究并没有证明这些基因突变的人和我们其余的人睡眠功能一样好，也许他们根本无法获得所需的睡眠。
Czeisler says that it doesn't prove that people with the mutation function as well as the rest of us; it's possible that they're just unable to get the sleep they need.
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