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【单选题】
下列哪项叙述不符合显带染色体命名 ( )
A.
显带染色体的明暗条纹称为带
B.
染色体上明显而恒定的形态特征，称为界标
C.
亚带的描述就是在带的后面加一小数点，再写出指定的亚带数
D.
如果亚带再被分，则其命名是在亚带后加标点，再加数字
E.
两个界标间的区域称为染色体区
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