ExplanationA.True. At the level of

ExplanationA.True. At the level of the organism, this type of colon cancer be inherited in dominant fashion but the mutant tumor-suppressor allele is recessive to the wildtype allele. This is because all somatic cells of the patient carry one recessivedefective copy of the gene, the strong likeli hood that in at least one of thehundreds of thousands of colon cells heterozygous for the tumor-suppressor gene,a subsequent geneti cevent will disable the single remaining functi onal tumor-suppressor allele, resulting in a mutant cell with no functi onal tumor-suppressorgene. This one cell then multi plies out of cont rol , event ually generating a clone of cancerous cells.B.True. This can be explained lf a wild-type p53 allele is degraded and thenresynthesized with template strand by DNA carrying the mutated p53allele.C.False. Dominant mutations that change proto-oncogene to oncogene mayoveracti ve expressi on of protein that promotes proliferation. Demethylation cause gene became active so cancer gene in this case is tumor-suppressor gene.