Jim Learned That Some Cancer Cells Produce More Growth-Stimulating Proteins

question 5

Multiple Choice

Jim learned that some cancer cells produce more growth-stimulating proteins than others.What would you give him as a plausible explanation?

• A)Tumor suppressor genes may have been activated in these cells.
• B)Proto-oncogenes may have mutated to become oncogenes in these cells.
• C)Mutations in homeotic genes may be responsible.
• D)This may result from vitamin C and vitamin E deficiencies.

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Definitions:

Bromine Water

A solution of bromine in water, used as a reagent to test for the presence of unsaturation in organic compounds.

Monosaccharides

The simplest form of carbohydrates, consisting of single sugar molecules like glucose and fructose, that serve as energy sources.

Reducing Sugars

Sugars capable of acting as reducing agents, having free aldehyde or ketone groups that allow them to reduce other compounds, commonly tested by Benedict's or Fehling's solution.

Ketose

A type of monosaccharide (simple sugar) where the carbonyl group is a ketone, found in several biochemical pathways.