Biologists Have Found Numerous Genes in a Single Cell That

question 96

Multiple Choice

Biologists have found numerous genes in a single cell that encode cAMP-binding proteins.Based on what you know about cAMP as a second messenger in signal transduction pathways, which statement makes a reasonable claim?

• A) Only one of the cAMP-binding proteins could be a participant in a signal transduction pathway, while the others must have some other function in the cell.
• B) All of the cAMP-binding proteins must be participants in the same signal transduction pathway in a cell.
• C) All of the cAMP-binding proteins may be participants in different signal transduction pathways in a cell and are likely expressed at different times.
• D) The genes encoding the cAMP-binding proteins are likely to be expressed whenever cAMP levels increase in the cell.
• E) The genes encoding the cAMP-binding proteins are likely regulated by transcription factors that are stimulated by the same external chemical signals.

---

Definitions:

Painter

An artist who creates visual works primarily using paint as a medium on surfaces such as canvas, wood, walls, or paper.

Production Incentives

Rewards or benefits given to employees to motivate them to increase their output or efficiency in the production process.

Piecework

A payment method by which employees are paid a fixed rate for each unit produced or action performed, regardless of time.

Assembly-Line Workers

Employees who work on a manufacturing process where the product is moved from workstation to workstation, with each worker responsible for a specific task.