What type of mutation occurs within cells of the body and cannot be transmitted to offspring?

A somatic cell mutation occurs in non-reproductive cells, meaning it is not found in the gametes (sperm or eggs). Because these mutations happen in the body cells and are not passed on during reproduction, they cannot be transmitted to the next generation. This type of mutation can still have significant effects on the individual, such as contributing to the development of cancer or other diseases, but its effects are limited to the individual in which the mutation occurs.

In contrast, a gametic cell mutation happens in the reproductive cells and can be passed on to offspring, leading to inherited traits or conditions. Genetic mutation is a broader term that encompasses any alteration in the DNA sequence, including both somatic and germline mutations. Inherited mutations, specifically, refer to those that are transmitted from parents to offspring through gametes. Thus, these types of mutations would not apply to the question's focus on non-transmissible mutations.