1. In his experiment, the
genetically altered mice approached cats, even snuggled up to them and played with them.
在他的试验中，基因改变的老鼠会接近猫，甚至和猫依偎，玩耍在一起。
2. One biomedical application of the cloning technique is
genetically modifying animals so that their cells and organs can be transplanted into humans.
克隆技术的一项生物医学应用是遗传性地改变动物，使它们的细胞或器官能移植给人类。
3. Happiness, like cholesterol level, is a
genetically influenced trait. Yet as cholesterol is also influenced by diet and exercise, so our happiness is to some extent under our personal control.
幸福，就像胆固醇，是一种遗传特性。然而，就像胆固醇也受饮食和锻炼的影响一样，我们的幸福在一定程度上也受我们个人控制。
