Why Are Two-Component Regulatory Systems Particularly Useful for Controlling Gene

question 16

Multiple Choice

Why are two-component regulatory systems particularly useful for controlling gene expression in response to environmental signals?

• A) Two proteins controlling a gene means there are two chances to activate a gene.
• B) Two proteins delay the response time so the cell can be sure the change is permanent.
• C) One of the two proteins can be exposed to the external environment to receive a signal.
• D) Phosphorylation is a permanent change so genes are always turned on after signal.

---

Definitions:

Exploratory Stage

A phase of career development or personal growth where individuals actively seek out and explore various options, interests, or pathways to gain clarity and make informed decisions.

Mastery Orientation

An orientation to failure in which individuals move forward optimistically, assuming that they can succeed with further effort. They seem to construe failure as a challenge rather than as an obstacle.

Incremental Theory

The belief that abilities can be developed through dedication and hard work, embodying a view of intelligence that it is flexible and growth-oriented.

Entity Theory

A belief that abilities are fixed and innate, leading individuals to view their capabilities as static and unchangeable, as opposed to being developed through effort and practice.