Parents' behaviour had little correlation with fetus chromosome abnormalities.
父母的行为与其胎儿染色体核型正常或异常关系不大。
Chromosome material with exhibits of such behaviour is called heterochromatin.
表现这种现象的染色体物质叫做异染色质。
Chromosome material with exhibits of such behaviour is called heterochromatin.
表现这种现象的染色体物质叫做异染色质。
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