Answer:
A region of DNA would not be expressed if the DNA in that region is condensed.
Step-by-step explanation:
Broadly speaking, we can say that a cell's gene expression pattern is determined by information from both inside and outside the cell. Examples of information from inside the cell: the proteins it inherited from its mother cell, whether its DNA is damaged, and how much ATP it has. Each cell expresses, or turns on, only a fraction of its genes at any given time. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as gene regulation.