| 标记 | 
描述
 | 
| , | 
分割众数(英語:modal number,染色体总数)、性染色体与染色体异常变化
 | 
| - | 
染色体缺失
 | 
| ( ) | 
将断点及结构被改变的染色体归类
 | 
| + | 
染色体增加
 | 
| ; | 
Separates rearranged chromosomes and breakpoints involving more than one chromosome
 | 
| / | 
Separates cell lines or clones
 | 
| // | 
Separates recipient and donor cell lines in bone marrow transplants
 | 
| del | 
缺失
 | 
| der | 
衍生染色体
 | 
| dic | 
双着丝粒染色体
 | 
| dn | 
de novo (not inherited) chromosomal abnormality
 | 
| dup | 
重复 of a portion of a chromosome
 | 
| fra | 
脆性位点 (usually used with X染色体易裂症)
 | 
| h | 
异染色质 region of chromosome
 | 
| i | 
等臂染色体
 | 
| ins | 
插入
 | 
| inv | 
倒位
 | 
| .ish | 
Precedes 核型 results from FISH analysis
 | 
| mar | 
标记染色体
 | 
| mat | 
母系源性染色体重排
 | 
| p | 
染色体短臂
 | 
| pat | 
父系源性染色体重排
 | 
| psu dic | 
伪双着丝粒 - only one centromere in a  Dicentric chromosome is active
 | 
| q | 
染色体长臂
 | 
| r | 
环状染色体
 | 
| t | 
易位
 | 
| ter | 
Terminal end of arm (e.g. 2qter refers to the end of the long arm of chromosome 2)
 | 
| tri | 
三体性
 | 
| trp | 
染色体一部分三倍化
 |