A Researcher Found a Method She Could Use to Manipulate

question 20

Multiple Choice

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture.
-She tried decreasing the amount of methylation enzymes in the embryonic stem cells and then allowed the cells to further differentiate. Which of the following results would she most likely see?

• A) increased chromatin condensation
• B) decreased chromatin condensation
• C) abnormalities of mouse embryos
• D) decreased binding of transcription factors
• E) inactivation of the selected genes

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Definitions:

Agency Relationship

A legal relationship in which one party, the agent, is authorized to act on behalf of another party, the principal, in conducting business transactions.

Independent Contractor

One who contracts to do a job and who retains complete control over the methods employed to obtain completion.