Chromatin from Two Tissues, Skin and Liver, Was Extracted and Analyzed

question 25

Multiple Choice

Chromatin from two tissues, skin and liver, was extracted and analyzed near the gene Twist. The liver chromatin was found to be more DNAse sensitive than the chromatin from skin cells. What might explain this difference?

• A) Twist is expressed at the same level in both liver and skin cells.
• B) Twist is expressed in skin and not liver.
• C) Twist is silenced in skin and not liver.
• D) Twist is not expressed in either liver or skin cells
• E) Chromatin near Twist in liver cells is heterochromaitic.

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Definitions:

Extrapersonal Environment

The external surroundings, conditions, or factors that exist outside of the individual but can influence their behavior or condition.

Spiritual Variable

An element in health and wellness studies that considers the influence of spiritual beliefs, practices, and experiences on an individual's health and healing processes.

Physiological Variable

A factor that can change and affect the functions of the body or its systems.

Negentropy

A measure of system complexity, order, or predictability; often considered the opposite of entropy.