Question

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?

○ expression of inappropriate gene products
○ a decrease in mitotic frequency
○ an increase in nondisjunction
○ death of the cancer cells in the tumor

Explanation:

When a gene is placed near different control regions due to chromosomal errors like translocations, it can lead to abnormal gene regulation. Gene expression results in gene products (proteins). If the gene is now under the influence of inappropriate control regions, it will produce inappropriate gene products. A decrease in mitotic frequency would slow down cancer cell division (opposite of worsening cancer). An increase in nondisjunction (chromosome segregation error in meiosis, not directly related to cancer - cell - division - related worsening in this context as cancer cells divide by mitosis). Death of cancer cells would not make cancer worse.

Answer:

expression of inappropriate gene products