Question

UV radiation can directly cause the DNA within cells to mutate, which may eventually lead to the formation cancer.

Which of the following best describe mechanisms for how UV radiation may lead to cancer?

Answer 1

Answer: C and D

Explanation: Specific checkpoints and cytokinesis are completely normal and necessary steps in cell division, and checkpoints actually, in part, prevent the formation of cancer. UV radiation, if anything, will cause problems for cell division, and the over-expression of oncogenes and under-expression of tumor suppressors ultimately result in the formation of or increased likeliness of cancerous tumors.

Answer 2

C and D

C - UV radiation maycause negative regulators (tumor suppressors) to be under-expressed.

D - UV radiation may cause positive regulators (oncogenic) to be over-expressed.