A chromosome is a structure of DNA, protein, and RNA found in cells. It is a single piece of coiled DNA containing many genes. Chromosomes also contains DNA bound proteins which serve to package the DNA and control its function. In eukaryotes, nuclear chromosomes are packaged by proteins into a condensed structure called chromatin. This allows the DNA molecules to fit into the cell nucleus.
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Chromosomes is a struture of DNA,protien and RNA found in cell .It is a single piece of DNA containng many genes,regulatory elements and other nucleotide sequence.