题目内容
The length of DNA fragment in each nucleosome is about:____
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Chromosomal DNA of the eukaryotes is circular in cell. ( )
Plasmid contains origin of replication and can replicates independently in the host cell.( )
A split gene refers to that two genes are separated by some non-coding DNA sequences. ( )
The chemical basis of most genes in nature is DNA.( )
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