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.

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Definitions:

Yayoi Period

An era in Japanese history, from around 300 BC to 300 AD, marked by the introduction of rice agriculture, metalworking, and new pottery styles.

Pit Dwellings

Ancient or prehistoric dwellings dug into the ground and often covered with roofs, providing insulation from the environment.

Jomon Ceramics

Pottery produced in ancient Japan during the Jomon period, characterized by intricate patterns made by impressing cord into the clay before firing.

Shang Bronzes

Ancient Chinese bronze artifacts, primarily ritual vessels and weaponry, produced during the Shang dynasty (circa 1600–1046 BCE).