Which of the Following Mechanisms Is Used to Coordinate the Expression

question 25

Multiple Choice

Which of the following mechanisms is used to coordinate the expression of multiple, related genes in eukaryotic cells?

• A) Environmental signals enter the cell and bind directly to promoters.
• B) A given gene may have multiple enhancers, but each enhancer is generally associated with only that gene and no other.
• C) The genes are organized into a large operon, allowing them to be coordinately controlled as a single unit.
• D) A single repressor is able to turn off several related genes.