二倍体生物：代表生活史中植物体阶段的二倍体生物，其单倍体仅局限于配子体。
Diplont a diploid organism that represents the vegetative stage in life cycles in which haploidy is restricted to the gametes.
它是单细胞真菌，有单倍体和二倍体两种存在形态。
The fungus is unicellular and exists in both haploid and diploid phases.
通过花药培养获得的水稻植株中，具有丰富的倍性变异，通常需在成熟期基于形态特征识别单倍体、二倍体及多倍体。
Through rice anther culture several kinds of ploidy plants can be obtained, such as haploid, diploid, polyploid and usually based on the morphology to distinguish their ploidy during maturity.
从对酸铝敏感的栽培大麦品种“早熟3号”的花药和幼胚培养物中，分别诱导了单倍体和二倍体愈伤组织。
The haploid and diploid calli were induced respectively from anther and immature em- broy cultures in barley cultivar'Zhaoshu No. 3', which is susceptible to acid-aluminum.
据罗琛研究发现单倍体胚胎发育不正常是因为单倍体不能选择二倍体依赖的调控系统。
Luo et al have proposed that the cause of abnormal development in haploid embryos is that there is a diploid-dependent regulatory apparatus which modulates gene expression.
实验表明，单倍体的上述同工酶区带数和活力与同胚期的二倍体比较，差异甚大。
The results show that there are many differences in activities and bands between their corresponding isozymes.
可以用单倍体数目或二倍体数目来表示。
It may be expressed as either the haploid (n) or diploid (2n) number.
而单倍体植株是胡萝卜遗传研究的最好材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
而单倍体植株是胡萝卜遗传研究的最好材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
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