A Researcher Found a Method She Could Use to Manipulate

question 54

Multiple Choice

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of C nucleotides in a mammalian system. Which of the following results would she most likely see?

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

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Definitions:

Skeletal Abnormalities

Deviations or anomalies in the structure or function of the bones, affecting shape, strength, or integrity.

Activity Tolerance

The level of physical activity that a person can perform without experiencing adverse effects.

Contractures

The permanent tightening of muscles, tendons, or skin that restricts normal movement.

Passive Range

The extent of movement at a joint attained with external assistance, without the active contraction of the patient's muscles.