The diameter of beads-on-a-string structure of nucleosome is 30nm, to which linker DNA is connected to form 30nm fiber.( )
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The main difference of chromosome and chromatin is the compactness, while their chemical composition is exactly the same.( )
Four kinds of histones in nucleosome core particle as well as H1 is highly conserved, without species and tissue specificity.( )
DNA is genetic material but RNA is not.( )
Most of DNA sequences in high eukaryotes don’t encode proteins.( )