A human gene can have a homolog in mice.
人类的一个基因在小鼠中可能有一个同源基因。
By comparing mitochondrial DNA homologs across species, researchers inferred an evolutionary relationship that wasn’t obvious from appearance alone.
通过比较不同物种间线粒体 DNA 的同源序列,研究人员推断出一种仅凭外形并不明显的进化关系。