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Questions and Answers
What are housekeeping proteins in a multicellular organism responsible for?
What are housekeeping proteins in a multicellular organism responsible for?
- Energy production
- Cell differentiation
- DNA replication (correct)
- Protein synthesis
Why is it more efficient to turn on genes only when they are required?
Why is it more efficient to turn on genes only when they are required?
- It reduces the need for transcription factors
- It leads to cell differentiation
- It prevents the formation of specialized proteins
- It requires a significant amount of energy to always express every gene (correct)
What can cells change in response to external signals?
What can cells change in response to external signals?
- Their metabolic pathways
- Their reproductive cycle
- Their DNA structure
- The expression of their genes (correct)
What do regulatory sequences in the promoter region contain?
What do regulatory sequences in the promoter region contain?
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What is the role of repressors in gene regulation?
What is the role of repressors in gene regulation?
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