Here's why:
* Somatic cells are all the cells in your body except for germ cells (sperm and egg cells).
* Germ cells are the only cells that contribute to the genetic makeup of offspring.
* Mutations are changes in the DNA sequence.
Therefore, if a mutation occurs in a somatic cell, it will only affect that cell and its descendants within that individual's body. This is why mutations that occur in somatic cells are often associated with diseases like cancer, which only affect the individual carrying the mutation.
On the other hand, mutations in germ cells can be passed on to offspring. These mutations are present in every cell of the offspring, and can have a significant impact on their development and health.
In summary: Mutations in somatic cells are not inherited, while mutations in germ cells are inherited.
