Consider the following mutations and, for each, explain whether you expect it to be: a) potentially promoting cancer, or b) dominant or recessive.
A mutation that destroys the active site of an enzyme necessary to promote cell cycle
A very premature STOP codon in a gene encoding a protein involved in the excision-repair mechanism
A point mutation that renders constitutively active one of the signaling proteins in the Ras pathway
A null mutation in a gene encoding an apoptotic (apoptosis-promoting) protein