一项最新研究称,寿命受母系遗传影响更大,因为线粒体中的一些基因变异会影响后代寿命,而线粒体基因组只属于母系遗传。科学家通过动物实验发现,如果在雌性实验鼠的线粒体DNA中诱发一些特定的基因变异,它们的后代平均寿命仅为45周左右,比正常雌鼠后代少活约10周。此外,这些有遗传缺陷的实验鼠还出现了脑损伤、运动功能障碍等衰 According to a new study, life expectancy is more affected by maternal heredity because some of the genetic variations in mitochondria affect the life span of offspring, while the mitochondrial genome belongs only to matrilineal inheritance. Scientists found through animal experiments that if specific genetic variations were induced in the mitochondrial DNA of female mice, their offspring had an average lifespan of only about 45 weeks, about 10 weeks less than the normal female offspring. In addition, these genetic defects in mice also appeared brain damage, motor dysfunction and other decay