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Questions and Answers
What is the fundamental process that controls the development of multicellular organisms?
Regulation of gene expression
What happens to genes that restrain cell growth in cancer cells?
The synthesis of mRNA in bacteria involves processing to yield functional mRNA.
False
What types of defects can abnormalities in gene expression result in?
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In _____, the initial RNA transcript is subjected to processing.
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What is the role of RNA polymerase in transcription?
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Study Notes
Chapter 9: Transcriptional Control of Gene Expression
- The properties and functions of each cell type are determined by the proteins it contains.
- This chapter focuses on how the kinds and amounts of proteins produced by a cell are regulated.
- Regulation of gene expression is crucial for development of multicellular organisms.
- Abnormalities in gene expression can lead to cancer.
- Genes that restrain cell growth are repressed in cancer cells.
- Genes that promote cell growth are activated in cancer cells.
- Abnormalities in gene expression also cause developmental defects.
9.1 Control of Gene Expression in Bacteria
- Gene expression is regulated in response to changing nutritional and physical environments.
9.2 Overview of Eukaryotic Gene Control
- Gene expression is controlled in eukaryotes to regulate development.
- Gene expression is essential for development from a single fertilized egg cell into thousands of cell types.
- Regulation of gene expression in eukaryotes can modify flower structures.
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Description
Explore the crucial mechanisms of transcriptional control of gene expression in multicellular organisms through this quiz on Chapter 9. Understand how gene regulation impacts development, cancer, and the specific control of gene expression across bacteria and eukaryotes.
