1、Genetic factors play a significant role in determining an individual's height.
遗传因素在决定一个人的身高中起着重要作用。

2、The disease is believed to have a genetic basis, as it tends to run in families.
这种病被认为有遗传基础，因为它常常在家族中传递。

3、Scientists have made significant progress in decoding the genetic makeup of various organisms.
科学家在解码各种生物的基因组中取得了重要进展。