ɪf ɐ pˈɜːsən hɐz wˈʌn mjuːtˈeɪɾᵻd ænd dɪsfˈʌŋkʃənəl kˈɑːpi əvə tˈuːmɚ səpɹˈɛsɚ dʒˈiːn ænd hɪz sˈɛkənd, fˈʌŋkʃənəl kˈɑːpi ʌvðə dʒˈiːn ɡˈɛts dˈæmɪdʒd, ðeɪ mˈeɪ bɪkˌʌm mˈoːɹ lˈaɪkli tə dɪvˈɛləp kˈænsɚ.
If a person has one mutated and dysfunctional copy of a tumor suppressor gene and his second, functional copy of the gene gets damaged, they may become more likely to develop cancer.