Final answer:
When individuals inherit a predisposition to a particular cancer such as retinoblastoma, they inherit specific gene mutations that increase their risk of developing that cancer. In the case of retinoblastoma, the specific gene mutation involved is the RB1 gene. This mutation can be inherited from one or both parents and significantly increases the likelihood of developing retinoblastoma.
Step-by-step explanation:
When individuals inherit a predisposition to a particular cancer such as retinoblastoma, they inherit specific gene mutations that increase their risk of developing that cancer. In the case of retinoblastoma, the specific gene mutation involved is the RB1 gene. This mutation can be inherited from one or both parents and significantly increases the likelihood of developing retinoblastoma.