The chimaeric molecule , containing the vector dna and inserted foreign dna , is introduced into bacterial cells where it multiplies 含有载体的dna以及插入的外源基因的杂合子，被引入细菌细胞，并且在其中增殖。
Haplont a haploid organism that represents the vegetative stage in life cycles in which diploidy is restricted to the zygote 单倍性生物：是一个单倍体或生物体，该生物体体现二倍性仅限于合子的生活史中的营养阶段。
The gametes fuse to form a zygote , which develops into the sporophyte , and the spores germinate and produce the gametophyte , so forming a cycle 配子融合产生合子，进而发育为孢子体，孢子萌发产生配子体，形成一个循环。
Karyogamy the fusion of two nuclei that exist within a common cytoplasm , as occurs in the formation of the zygote from two gametes 核配：同一个细胞中两个核之间的融合现象称为核配，核配发生在两个配子结合成合子的过程中。
Complex vertebral malformation ( cvm ) , a lethal autosomal recessive inherited defect in holstein breed , was newly reported in demark 摘要荷斯坦奶牛脊柱畸形综合征是近年新发现的一种常染色体隐性遗传病，该病对纯合子胎儿是致死性的。
It was a truly sight , watching the numberless little wooden house catching fire one after another , and flaming up like so many match - boxes 那真是一个可怕的光景，望着无数的小木屋，一个又一个地着火燃烧，就像那样多的火柴合子一样。
The pollen grain germinates on a special extension of the carpel , the stigma , and double fertilization results in a diploid zygote and triploid ( usually ) endosperm nucleus 花粉粒在柱头上萌发，双受精导致双倍体的合子和三倍体的胚乳形成。
Usually the more unlike the parents are the more hybrid vigor is released , but the effect diminishes in subsequent generations as more recessive homozygotes reappear 通常，亲本越不相似，产生的杂种优势越强，但这种优势使下一代的隐性纯合子的出现机率更多。
The callipyge phenotype in sheep is an inherited muscular hypertrophy that affects only heterozygous individuals who receive the clpg mutation from their father 只有遗传了来源于父本的clpg突变的杂合子个体才能表达这一表型，因此推测这一性状受印记基因的控制。
