Chpt 16 Control of Gene Expression

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CHAPTER 16: CONTROL OF GENE EXPRESSION

What is a DNA-binding protein?

What is a transcription factor? List any 2 motifs that would have to be present in such a protein.

What is an operon?

An operon is a set of genes that are controlled by one operator.

Describe how the trp operon is regulated in E.coli

How does E.coli metabolise lactose?

What is alternative splicing?

Alternative splicing occurs after the primary transcription of RNA. Instead of simply splicing out the Introns and moving the remaining Exons together, sometimes the exons are spliced in a different(or alternative) order.

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