In Later Chapters,you Will Learn More About the Regulation of Gene

Multiple Choice

In later chapters,you will learn more about the regulation of gene expression.One way to regulate gene expression is to make changes to the histone proteins to alter how tightly the DNA is coiled and wrapped.The more tightly coiled and wrapped a particular region of DNA is,the less likely it is that the genes in that region will be expressed.Bearing this in mind,how tightly do you think regions of heterochromatin are compacted?

A) Very tightly
B) Moderately
C) Loosely
D) Not at all