Cancer can be caused by excessive cell growth and divisick. two genes that regulate the growth and division of a cell are called
oncogenes and tumor suppressor genes. oncogenes direct cells to grow and divide, whereas tumor suppressor genes limit cell
growth and division.
certain viruses have been associated with an increased risk for cancer. for example, the hepatitis b and c viruses are associated
with liver cancer, the epstein-barr virus is associated with lymphoma, and the human papilloma viruses are associated with cervical
cancer.
viruses can cause mutations in their host cells. which mutation described below would be most likely to cause cancer in a host
organism?

The virus mutation that can cause cancer in a host organism is when the mutation occurs in the genome.

Explanation:

When cells that does not need to replicate start replicating proliferously then that particular cells become carcinogenic. A virus can cause considerable mutation in the genome of the host cells. The virus acts in the host cell alter their DNA and causes oncogenes.

Mutations in genes causes changes in the cell cycle. This creates an imbalance in the cell production where some cells undergo continuous cell division. As the cancerous cells undergoes vigorous proliferation they become malignant tumor.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).