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- Keywords chromosome nondisjunction;Down syndrome;parental origin; 染色体不分离;先天愚型;双亲起源;
- chromosome nondisjunction 染色体不分离
- The position that a given gene occupies on a chromosome. 基因座在一条染色体上某种给定基因所占的位置
- A chromosome composed primarily of heterochromatin. 异染色体主要由异染色质组成的染色体
- Nondisjunction of chromosome 21 is much more frequent than loss in vivo and in vitro.No significant difference in nondisjunction between male and female was noted. 21号染色体不分离与年龄的关系极显著，无论在体内还是体外，21号染色体不分离远远高于丢失。
- Chromosome 5 is distinguished by a proximal knob. 第5染色体的特点是有一个近侧的节结。
- Several copies of specific chromosome are present. 特殊染色体存在着几个拷贝。
- Genome A complete haploid chromosome set. 基因组：即一套完整的单倍体染色体。
- An organism having a euploid chromosome number. 整倍体具有整倍体染色体数的有机组织体
- With the increase of chromosome ploidy. 并且。随着染色体倍性提高。
- Toreplace a chromosome by proportional selection. 基因的选择算子。
- Chromosome studies on two species of Trifolium L. 两种车轴草的染色体研究。
- A chromosome that is not a sex chromosome. 常染色体非性染色体的一个常染色体
- THE CHROMOSOME NUMBERS OF 13 SPECIES IN SMILAX L. 菝葜属13个种的染色体数目
- Male have XY chromosome. Female have XX chromosome. 雄性动物细胞有一对XY染色体，雌性动物细胞有一对XX染色体。
- The higher frequency in the gains of chromosome No. 结果表明,鼻咽癌染色体畸变具有类型广泛、畸变率高等特点。
- Y chromosomal nondisjunction Y染色体不分离
- One relapsed case showed abnormal chromosome again. 术后复发患者原有异常重现。
- chromosomal nondisjunction 染色体不分离
- Chromosome consist in in what cell? 染色体存在于什么细胞中？
