Abnormal chromosomes are frequent 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 non-disjunction
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

Question

Quizplus · Accepted Answer

The translocation may result in the inappropriate expression of gene products, such as oncogenes, which can promote tumor growth and progression. Non-disjunction, a decrease in mitotic frequency and death of the cancer cells in the tumor are unlikely to make the cancer worse. Sensitivity of the immune system is not directly related to the presence of abnormal chromosomes in tumor cells.

Abnormal Chromosomes Are Frequent in Malignant Tumors