Abnormal Chromosomes Are Frequently Found in Malignant Tumors

question 47

Multiple Choice

Abnormal chromosomes are frequently found in malignant tumors. Errors such as translocations may place a gene in close proximity to different control regions. Which of the following 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) death of the cancer cells in the tumor
• E) sensitivity of the immune system