A third possibility comes from the fact that the gene works by activating a generegulator that controls the immune system as well as hair growth.
第三种可能来自一个事实，即基因运作要通过激活控制免疫系统和头发生长的基因调节器。
2
So, very crudely, the thing on the wall is the switch DNA, your finger is the regulator, and gene expression is the light turning on or turning off.
因此，大体上可以这么形容，在墙上的东西就是开关DNA，手指是调控器，基因表达就是打开灯或关闭灯。
3
"This is the first major study that shows how small changes in one master regulatorgene can cause a cascade of other metabolic effects in other genes," said lead author Tim Spector in a statement.