Which of the following is a biomarker that could reveal the presence of cancer through a blood test or screening?

Question

Quizplus · Accepted Answer

All of these biomarkers have been observed or proposed for detecting cancer through blood tests or screening. Mutant DNA can indicate genetic alterations related to cancer, abnormal carbohydrates can indicate cancer-related changes in glycosylation patterns, and distinctive metabolites can indicate altered metabolic activity in cancer cells. The presence of cancer cells in the blood can also be a direct indicator of cancer, such as in the case of circulating tumor cells.

Which of the Following Is a Biomarker That Could Reveal