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- 1. Multiple ChoiceWhat does a promoter do?it allows a gene (or genes) to be transcribedit creates a DNA segmentit is another word for ribosomesit is another word for RNA
- 2. Multiple ChoiceAn operon consists of all the the following EXCEPToperatorpromoterregulatory genegenes of the operon (gene cluster)
- 3. Multiple ChoiceA protein that binds to the operator and blocks the RNA polymeraseregulatorrepressoractivatorcorepressor
- 4. Multiple ChoiceThe "on/off" switch for an operon is called thepromoterrepressoroperatorgene
- 5. Multiple ChoiceA small molecule that binds to a repressor and makes it ACTIVE is arepressorregulatoractivatorcorepressor
- 6. Multiple ChoiceA small molecule that binds to the repressor and makes it INACTIVE is acorepressorinducerpromoteroperator
- 7. Multiple ChoiceWhen something sticks to the DNA to turn off gene expression, this is considered:negative controlpositive controlregular controlunleaded control
- 8. Multiple Choice
When a gene is transcribed when turned on by activator that sticks to DNA or changes the shape of a molecule already attached, it is considered _____ control
positive
negative
"out of"
ground
- 9. Multiple ChoiceTwo types of negative control arerepressible & induciblerepressible & activeactive & inactiverepressible & corepressible
- 10. Multiple ChoiceInducible negative control is when the gene cluster is transcribed when there is the ____ of a specific molecule from a metabolic pathway.presenceabsence
- 11. Multiple ChoiceRepressible negative control is when the gene cluster is transcribed when there is the ____ of a specific molecule from a metabolic pathway.presenceabsence
- 12. Multiple ChoiceAll of the following are true about DNA methylation EXCEPTtakes place on the DNAenzymes add a methyl groupwhen it occurs, transcription is more likely to occurchromatin becomes more tightly packed
- 13. Multiple ChoiceAll of the following are true about histone acetylation EXCEPTtakes place on the histoneenzymes add a acetyl groupwhen it occurs, transcription is more likely to occurchromatin becomes more tightly packed
- 14. Multiple ChoiceInheritance of traits by mechanisms not directly involving nucleotide sequence is calledepigenetic inheritancedifferential gene expressionchromosomal inheritancegene regulation
- 15. Multiple ChoiceIn eukaryotes, a cluster of proteins that assemble on the promoter is called thetranscription initiation complexcontrol elementactivatorprotein blobby thing
- 16. Multiple ChoiceIn eukaryotes, proteins that help the RNA polymerase bind to the promoter for transcriptiontranscription factorstopoisomeraseregulatory genesactivators
- 17. Multiple ChoiceA distal control region that activators bind to are bent to contact mediator proteins and form the transcription initiation complexenhancerspromotersrepressorstranscription factors
- 18. Multiple ChoiceWhich of the following is NOT a way to change gene expression in eukaryotes?alternative splicingmRNA processingrepressor protein binds to operatorhistone acetylation
- 19. Multiple ChoiceWhich of the following is a CORRECT DIFFERENCE between prokaryotic gene expression and eukaryotic gene expression?Prokaryotes transcribe one gene at a time, eukaryotes transcribe gene clustersProkaryotes use RNA polymerase to transcribe while eukaryotes use DNA polymeraseProkaryotes have introns and eons while eukaryotes have only exonsProkaryotes make proteins relatively unmodified while eukaryotes can have significant post-translational modifications
- 20. Multiple Choice
Which of the following is FALSE regarding eukaryotic gene regulation?Activators bind to enhancersTranscription factors and mediators help all of the proteins bind into a complexThe DNA bends to allow RNA polymerase to bind and transcribeOperons can be either inducible or repressible - Answer choicesTagsAnswer choicesTags