In which types of cells must mutations occur in order for the mutation to be passed on to future generations?

Mutations can occur in either cell type. If a gene is altered in a germ cell, the mutation is termed a germinal mutation. Because germ cells give rise to gametes, some gamete s will carry the mutation and it will be passed on to the next generation when the individual successfully mates

the answer is d.) homologous; have mammary glands