Abnormal Chromosomes Are Frequently Found in Malignant Tumours

question 10

Multiple Choice

Abnormal chromosomes are frequently found in malignant tumours. Errors such as translocations may place a gene in close proximity to different control regions. Which of the following events might then occur to make the cancer worse?

• A) an increase in nondisjunction
• B) expression of inappropriate gene products
• C) a decrease in mitotic frequency
• D) failure of the cancer cells to multiply

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Definitions:

Stimulus Magnitude

The intensity of a stimulus, which can influence the strength and type of response it elicits.

Light Enters

Refers to the process by which visible light makes its way into a space or material, initiating visibility or photosynthesis.

Pupil

The opening in the center of the iris of the eye, which regulates the amount of light that enters the eye.

Cornea

The clear, front part of the eye covering the iris and pupil, helping to focus incoming light.