Chapter 16 - RAVEN

What is the site at the 5' end of a gene where RNA polymerase attaches to start transcription?

• Promoter

• Operon

• Operator

• Repressor

Which of the following is responsible for directing development and maintaining homeostasis in multicellular organisms?

• Protein-DNA binding

• Bacterial response

• Gene regulation

• Transcriptional regulation

Where does transcription occur in eukaryotic cells?

• Nucleus

• Mitochondria

• Cytoplasm

• Cell membrane

What is the typical site designed for protein binding on DNA?

• Major groove

• Minor groove

• Double helix

• DNA backbone

What is the name of the DNA-binding motif that is one of the most common?

• Helix-turn-helix motif

• Major groove motif

• Structural motif

• Protein-DNA motif

Which DNA sequence does a repressor protein bind to regulate transcription?

• Operator

• Promoter

• Operon

• Regulatory DNA sequence

What is an operon?

• The DNA sequence where a repressor binds to prevent transcription

• A protein that can bind to the operator to regulate transcription

• A cluster of functionally related genes that are regulated together

• The site at the 5' end of a gene where RNA polymerase attaches to start transcription

If expression increases when biosynthetic product levels are low, what is likely inhibiting a repressor?

• The product

• The promoter

• The operator

• The operon

Which proteins are part of the lac operon in E. coli?

• Proteins for amino acid synthesis

• Proteins for lipid metabolism

• Proteins for lactose use

• Proteins for glucose use

What is the process by which RNA polymerase binds to the promoter to start transcription called?

• Transcription termination

• Translation initiation

• Translation termination

• Transcription initiation