The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this…
The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this DNA accommodated?
super-coiling in nucleosomes
DNase digestion
through elimination of repetitive DNA
deletion of non-essential genes.
Solution
The nucleosome model explains the packaging of histone proteins and DNA in the chromatin material which forms the chromosome.
Related Theory
A nucleosome is the basic structural unit of DNA packaging in eukaryotes. The structure of a nucleosome consists of a segment of DNA wound around eight histone proteins and resembles thread wrapped around a spool.