You Have Isolated DNA from Three Different Cell Types of an Organism

question 20

Multiple Choice

You have isolated DNA from three different cell types of an organism, determined the relative DNA content for each type, and plotted the results on the graph shown in Figure 13.3. Refer to the graph to answer the following
questions.

-Which sample of DNA might be from a nerve cell arrested in G₀ of the cell cycle?

• A)I
• B)II
• C)III
• D)Either I or II
• E)Either II or III

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Definitions:

Venturi Mask

A medical device used to deliver a specific concentration of oxygen to patients by mixing oxygen with inhaled air.

Chronic Obstructive Pulmonary Disease

A group of progressive lung diseases, including emphysema and chronic bronchitis, characterized by long-term breathing problems and poor airflow.

Tuberculin Skin Test

A diagnostic method to determine if a person has been exposed to tuberculosis bacteria, involving the injection of a small amount of tuberculin into the skin.

Induration

A medical term for an area of hardened tissue, typically resulting from inflammation, infection, or the reaction to a skin test.