AP Bio Insta-Review Topic 6.5: Regulation of Gene Expression

What are the transcription factors?

• Molecules that provide ATP to transcription unit

• Molecules that synthesize RNA during transcription 

• Molecules that bring amino acids to the transcription unit

• Molecules that bind to enhance/inhibit transcription. 

All somatic (body) cells have the same genetic information

• True

• False

What types of cells have operons? 

• Eukaryotes

• Prokaryotes

• Neither eukaryotes nor prokaryotes

• Both eukaryotes and prokaryotes

What binds to the promoter?

• DNA polymerase

• Operator

• Repressor

• RNA polymerase

What makes up the TATA box?

• Adenine & Cytosine

• Cytosine & Guanine

• Guanine & Thymine

• Thymine & Adenine

Where is the TATA box located?

• Near the introns

• Near the exons

• Near the poly adenylation sequence

• Near the promoter

Describe the effect of adding methyl group to DNA.

• Decreases condensation which decreases transcription

• Decreases condensation which increases transcription

• Increases condensation which decreases transcription

• Increases condensation which increases transcription

Describe affect of acetylating the histone tails

• Decreases condensation which decreases transcription

• Decreases condensation which increases transcription

• Increases condensation which decreases transcription

• Increases condensation which increases transcription

All somatic cells within one organism have the same DNA.

• True

• False

Where does the repressor in an operon bind?

• Operator

• Promoter

• Regulatory sequence

• TATA box