What Did the Experiment by Avery,MacLeod,and McCarty in 1944 with the R

question 38

Multiple Choice

What did the experiment by Avery,MacLeod,and McCarty in 1944 with the R and S strains of Streptococcus pneumoniae demonstrate?

• A)DNA was the genetic material in cells.
• B)R strain phenotype could spontaneously revert to S strain phenotype.
• C)Genetic material from one strain could be transferred to another strain.
• D)The ability of these bacteria to kill mice.
• E)That some strains of Streptococcus were not pathogenic.

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Definitions:

Risk/Benefit Ratio

An assessment used to evaluate the risk and benefits of a particular action or decision, often applied in healthcare to determine treatment paths.

Potential Stress Component

An element in a person's environment or in their psychological makeup that has the ability to cause stress or anxiety.

Operational Definition

A clear, precise definition of a study variable in terms of the specific methods or procedures used to measure or identify it.

Independent Variable

In an experiment, the variable that is manipulated to test its effects on the dependent variable, to determine causality.