When dna is compacted by histones into 10-nm and 30-nm fibers, the dna is unable to interact with proteins required for gene expression. therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. which processes contribute to this dynamic activity?

Answered

Explanation:

When DNA is compacted by histone into 10-nm and 30-nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. So, the process that contribute to the dynamic activity of methylation and phosphorylation of histone tails.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.