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二者杂交不能形成稳定遗传的双二倍体。The hybrid can not be steadily hereditary as double diploid.

同源四倍体水稻是二倍体水稻染色体加倍形成的。Autotetroploid rice has double genome compared with diploid rice.

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体细胞中存在二倍体细胞是性细胞中出现二倍体细胞的前提。Only if diploid cell was in somatic cells, it would appear in PMCs.

此外还有一粒小麦，是二倍体。These are tetraploids. and there is the einkorn, which is a diploid.

只有一小群隔离开来的种鱼可以保持为二倍体。Only a small, sequestered breeding stock is allowed to remain diploid.

喂的这种模式做有势力的单倍体阶段和一个二倍体受精卵。This mode of feeding makes dominant haploid phase and a diploid zygote.

是胚胎培养过程中，二倍体细胞发育为胚胎的过程。The development of embryos from diploid somatic cells in embryo culture.

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主要由中部和近中部着丝点染色体组成。The diploid mainly consists of metacentric and submetacentric chromosomes.

几乎全部的动物和过半数的高等植物都是二倍体。Almost all of the animals and more than half of the higher plants are diploid.

首次获得人工诱导雄核发育二倍体大鳞副泥鳅克隆鱼。Androgenetic diploid clones of Paramisgurnus dabryanus were induced by heat shock.

结论胡麻油烟冷凝物具有诱导人胚肺二倍体细胞转化的作用。Conclusion SOFC could induce human embryo lung diploid cell malignant transformation.

只有卵菌纲通常有二倍体的营养状态。Of the six fungal classes only the oomycetes usually have a diploid vegetative state.

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四倍体与二倍体在形态学和细胞学上有明显差异。There are obvious difference on morphology and cytology between polypoid and diploid.

当两个配子核融合形成合子时，又恢复二倍体状态。The diploid condition is restored when the nuclei of two gametes fuse to give the zygote.

细胞学研究发现，其染色体数为30，核型属1A型。Cytological study relieved that it was a diploid with 30chromosomes and its karyotype was 1A.

虫卵大小介于卫氏并殖吸虫二倍体型与三倍体型虫卵之间。The size of eggs is between those of the diploid type and the triploid type of P. westermani.

同源四倍体和相应的二倍体相比，出现了DNA水平的变异。There was a variation in DNA among the homologous tetraploids with the corresponding diploid.

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硅藻类的营养细胞是二倍体，它是由配子融合直接产生的。In diatoms the vegetative cells are diploid , and are formed directly by the fusion of gametes.

对红掌四倍体和二倍体材料的气孔特征进行了研究。The stoma characters of both tetraploid and diploid Anthuriums were comparatively investigated.

单倍性、二倍性和多倍性多胚苗在作物育种上具有各自不同的意义。The haploid, diploid and polyploid PS materials have respectively special value in crop breeding.