染色体染色体异数性之一。二倍体失去一对同源染色体，染色体数目就变成2n-2。失去的一对染色体就叫做缺对染色体（nullisome）。在具有n对染色体的植物中，因缺失的染色体的不同，应该有n种缺对染色体植物，在它们的形态上也能被区别出来。
染色体对
网络释义专业释义
短语
染色体配对 [遗] chromosome pairing ; Pairing of chromosomes ; synapsis ; chromosome conjugation
缺对染色体 nullisome
缺对染色体的 nullosomic ; nullisomatic
异形对染色体 heteromorphic chromosome
成对染色体 [遗] pairing chromosomes
缺对染色体生物 [遗] nullisomic
异源[染色体]配对 heterogenetic pairing
体细胞[染色体]配对 somatic pairing
体细胞染色体配对 somatic chromosome pairing ; somatic chromosomepairi
缺对染色体性 nullisomy
双语例句原声例句
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除了正常染色体对以外，还存在有第二种同源染色体的非整倍体状态，被称为三体性。
An aneuploid state in which a third homologous chromosome is present in addition to the normal autosomal pair is called trisomy.
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利用小麦-黑麦的7个附加系为材料，研究了黑麦染色体对籽粒淀粉粒的形成和胚乳细胞数目多少的影响。
By using 7 rye additional wheat lines as materials, the effects of rye chromosomes on wheat seed storage starch development and endosperm cell number were studied.
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一个健康的受精卵有46个染色体(23对)，但在它能分化之前，它必须先分为23个一组，形成极体。
A healthy egg carries 46 chromosomes - 23 pairs - but before it can be fertilised it needs to ditch 23 of these, which it packages into a structure called a polar body.
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Now DNA that's produced this way is not called genomic DNA because this doesn't match the DNA in your genome, on your chromosomes,right?
现在造出来的这个DNA,不叫基因组DNA,因为这跟你基因组里的DNA不一样,跟你染色体上的基因不一样,对吧
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