F 1 females could be backcrossed to the male homozygous recessive parent.也可用雌性F1与隐性纯合雄性亲本回交.Altogether, half the offspring will be homozygous at that particular locus.加在一起, 将有半数的后代在那个特定的位点上是纯合的.Homozygous races do not se...
这部电影正在选中的几个城市里放映。The movie is being shown in selected cities.选中的汽车看上去破烂不堪,但上面的发动机却非常好.It would be a beat - up - looking car but with a fine motor.选中的司机就是忒希奥本人, 其实他也是毛遂自荐的.The driver would be Tessio himself, who had volun...