Abnormal chromosomes are frequently found in cancerous malignant tumors.Errors such as translocations may place a gene in close proximity to different control regions of the DNA,which can make cells cancerous.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

Question

Quizplus · Accepted Answer

Expression of inappropriate gene products can lead to uncontrolled cell growth and proliferation, making the cancer worse. Nondisjunction and a decrease in mitotic frequency may have varying effects on the cancer, but they are not directly related to the expression of abnormal gene products. Death of the cancer cells in the tumor would actually be beneficial, but it is unlikely to occur without intervention such as chemotherapy or radiation therapy, which would also affect healthy cells in the body.

Abnormal Chromosomes Are Frequently Found in Cancerous Malignant Tumors