下图是有关细胞、细胞核、染色体、DNA、基因五者之间的关系图。下

下图是有关细胞、细胞核、染色体、DNA、基因五者之间的关系图。下列叙述错误的是( 

A.染色体位于细胞核中      B.基因是DNA分子上有遗传效应的片段

C.遗传物质是染色体        D.DNA是重要的遗传物质

答案

C

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