6.1 Identifying the Substance of the Gene
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24 questions
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- Q1In the Griffith experiments, what was the substance of the gene that was responsible for transformation in bacteria?ProteinDNARNALipid30s
- Q2In the Hershey-Chase experiment, what was the substance of the gene in bacteriophages?RNADNAProteinLipid30s
- Q3What is the process by which bacteria can take up and express foreign DNA?Bacterial conjugationBacterial transformationBacterial transductionBacterial replication30s
- Q4What is the process by which a virus infects a bacterial cell and injects its own DNA into the cell?Bacterial conjugationBacterial transformationBacterial transductionBacteriophage infection30s
- Q5In the Griffith experiments, what were the two strains of bacteria used?Fast-growing strain and slow-growing strainResistant strain and susceptible strainSmooth strain and rough strainWild-type strain and mutant strain30s
- Q6What happened when the smooth strain of bacteria was injected into mice?The mice recoveredThe mice developed immunityThe mice diedThe mice showed no symptoms30s
- Q7What happened when the rough strain of bacteria was injected into mice?The mice recoveredThe mice developed immunityThe mice diedThe mice showed no symptoms30s
- Q8What happened when heat-killed smooth strain bacteria were injected into mice?The mice recoveredThe mice developed immunityThe mice diedThe mice showed no symptoms30s
- Q9What happened when heat-killed smooth strain bacteria and live rough strain bacteria were injected into mice?The mice developed immunityThe mice showed no symptomsThe mice diedThe mice recovered30s
- Q10In the Hershey-Chase experiment, what was the goal of the study?To determine the evolution of the gene in bacteriophagesTo determine the structure of the gene in bacteriophagesTo determine the substance of the gene in bacteriophagesTo determine the function of the gene in bacteriophages30s
- Q11What were the two substances labeled in the Hershey-Chase experiment?Calcium and sodiumPhosphorous and sulfurCarbon and oxygenNitrogen and hydrogen30s
- Q12How were the labeled substances incorporated into the bacteriophages?The phosphorus was incorporated into the DNA, and the sulfur was incorporated into the proteinThe phosphorus was incorporated into the protein, and the sulfur was incorporated into the DNAThe phosphorus and sulfur were both incorporated into the proteinThe phosphorus and sulfur were both incorporated into the DNA30s
- Q13How was the labeled DNA and labeled protein separated in the Hershey-Chase experiment?FlotationCentrifugationChromatographyElectrophoresis30s
- Q14What was the conclusion of the Hershey-Chase experiment?The substance of the gene in bacteriophages is RNAThe substance of the gene in bacteriophages is proteinThe substance of the gene in bacteriophages is DNAThe substance of the gene in bacteriophages is lipid30s
- Q15What is a bacteriophage?A bacteria that infects virusesA virus that infects animalsA virus that infects bacteriaA bacteria that infects animals30s