[ U ] the way in which genes change and produce permanent differences(基因的)变异,突变
It is well known that radiation can cause mutation.众所周知,辐射可能造成基因突变。
[ C ] a permanent change in an organism, or the changed organism itself(生物体的)变异,突变;突变生物体
Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使发生了某些突变的基因存活下来,另一些则消亡了。
These plants carry the mutation for red flowers.这些植物携带红花变种。