Which of the Following Is NOT a Reason Why Experiments

question 28

Multiple Choice

Which of the following is NOT a reason why experiments help researchers determine causality?

• A)In an experiment,the researcher can control the temporal sequence of two variables.
• B)Because they take place in a controlled laboratory setting,experiments have greater external validity.
• C)Participants can be randomly assigned to different conditions of the independent variable.
• D)The experimenter can hold everything constant except for the variable being manipulated.

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Definitions:

Repressor Molecule

A protein that inhibits gene expression by binding to the operator or associated silencers.

Operator

In genetics, a segment of DNA to which a repressor protein binds, controlling the transcription of nearby genes.

RNA Polymerase

During transcription, an enzyme that creates an mRNA transcript by joining nucleotides complementary to a DNA template.

Translation Site

The location within the cell where mRNA is translated into proteins, typically occurring in the ribosomes.