AP Biology Unit 6 Review Pt2: Molecular Genetics Quizizz

 A frameshift mutation could result from 

• a base insertion only.
• a base deletion only. 
• a base substitution only. 
• either an insertion or a deletion of a base.

Tags

NGSS.HS-LS3-2

What is the flow of genetic information in cells from DNA to protein? (Central Dogma)

• RNA to DNA to protein
• DNA to RNA to protein
• protein to DNA to RNA
• RNA to protein to DNA

Tags

NGSS.HS-LS1-1

Which of the following statements best describes the termination of transcription in prokaryotes? 

• RNA polymerase transcribes through the polyadenylation signal, causing proteins to associate with the transcript and cut it free from the polymerase
• RNA polymerase transcribes through the terminator sequence, causing the polymerase to separate from the DNA and release the transcript.
• RNA polymerase transcribes through an intron, and the snRNPs cause the polymerase to let go of the transcript. 
• Once transcription has initiated, RNA polymerase transcribes until it reaches the end of the chromosome. 

What is the role of operons in prokaryote gene expression?

• It makes the genes prokaryotes be turned on
• It accounts for the regulation of gene activity in response to the needs of the cells
• To make DNA for the gene
• To make the gene turn of and off

what does a promoter do?

• it allows a gene to be transcribed
• it creates a DNA segment
• it is another word for ribosomes
• it is another word for RNA

A protein that binds to the operator and blocks the RNA polymerase

• regulator
• repressor
• activator
• corepressor

A small molecule that binds to the repressor and makes it inactive is

• corepressor
• inducer
• promoter
• operator

Which of these enzymes is not part of transcription?

• DNA Polymerase
• Helicase
• Topoisomerase
• None of these are transcription enzymes

Which phase of which process does this picture show?

• Elongation of Transcription
• Termination of Transcription
• Termination of Translation
• Elongation of Translation

What is genetic engineering?

• Manipulation/addition of genes
• Naturally breeding two animals with desired traits
• Cross-pollinating two crops
• Harvesting stem cells