Wild populations of trees usually carry a large " genetic load " 树木的野生群体往往具有大量的“遗传负荷。 ”
2.
Most plants carry a large " genetic load " for deleterious recessive genes of which a few are homozygous and depress growth 多数植物带有大量有害的隐性基因的“遗传负荷” ,其中少数是纯合的,因而降低了生长。