环状染色体

结果表明：电子流与γ射线、X射线一样，能诱发细胞染色体畸变，出现染色体桥，染色体断片，染色体粘连，环状染色体，以及微核等。

The aberrations included chromosome bridge , chromosome fragment , chromosomal adherence , ring chromosome , micronuclei etc.

方法应用染色体G带、C带、N带、高分辨显带技术、表型定位和文献复习比较分析方法，对1例13号环状染色体综合征患者进行了研究。

Methods In this study the authors used G-banding , C-banding , N-banding , high-resolution banding , phenotype location analysis , and a comparative review of literature .

典型的13号环状染色体综合征与13q34的缺失相关；

The typical syndrome of ring-chromosome 13 is related to the deletion of 13q34 ;

低能N+离子束注入，影响M1代小麦植株花粉母细胞减数分裂，使中期Ⅰ细胞的染色体配对频率降低，单价体频率增高，出现环状染色体、染色体断臂和多价体；

Meiotic behavior of M_1 progenies is properly abnormal due to implantation of N ~ + ion beam . Compared with wheat plants not treated by low energy N ~ + ion beam , meiotic pairing frequency is decreased and univalent frequency is increased in metaphase cell .

观察到四倍体、环状染色体等正常驴体细胞染色体畸变类型。

Tetraploid and circular chromosomes were observed in this experiment .

13号环状染色体综合征的临床及其细胞遗传学研究

Study on the clinical cytogenetics of 13 ring chromosome syndrome

一例21号环状染色体综合征的细胞遗传学和表型定位分析

Cytogenetic analysis and phenotype location analysis on the karyotype of a ring chromosome 21 syndrome

一例4号环状染色体

A Case with Ring Chromosome 4

试验结果表明，混合粒子场辐照小麦种子可抑制根尖细胞有丝分裂，诱发染色体出现单微核、双微核、多微核、环状染色体、落后染色体、游离染色体、染色体断片等多种畸变类型。

The results showed that the irradiation of mixed high-energy particle field inhibited mitoses and produced various chromosomal aberrations such as micronucleus , chromosome bridges , circular chromosomes and dissociative chromosomes in root tip cells of wheat with significant dose-effects .

环状14染色体伴有癫痫及颜面异常一例报告

A case report of ring ( 14 ) chromosome with seizures and facial anomalies