Question

my question is Cancer can result from a variety of different mutational events. Which of the following is LEAST likely to result in the initiation of a cancerous tumor? why is At the anaphase checkpoint, separation of chromatids occurs without all centromeres being attached to kinetochore microtubules from both poles incorrect?A) A receptor mutation results in activation of a cell-division pathway in the absence of the appropriate ligand.B) A mutation results in the loss of the ability to produce a tumor-suppressor protein.C) A defect in a cell-cycle checkpoint prevents a cell from entering the S phase.D) At the anaphase checkpoint, separation of chromatids occurs without all centromeres being attached to kinetochore microtubules from both poles

Answer 1

Option B) " A mutation results in the loss of the ability to produce a tumor-suppressor protein" is incorrect because tumors/cancer are attacked mainly by macrophages and killer T cells (type of immune cells), and some of these proteins belong to these last, they are a type of antibody, however a mutation here not necessarily implies cancer, as cancer can came up