Multiple choice

Which of the following is capable of changing a proto-oncogene into an oncogene?

  1. Lymphocyte

  2. Virus

  3. Bacterium

  4. Radiation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Viruses can convert proto-oncogenes into oncogenes through several mechanisms: by introducing viral oncogenes (v-onc) that are homologous to cellular proto-oncogenes, by inserting near proto-oncogenes and causing their overexpression, or by carrying mutated versions. While radiation can also cause this conversion, viruses are particularly efficient at it.

Keep practicing — related questions