Are naturally occurring genetic mutations always harmful to the organism? Give at lease one example to support your claim.

Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.

Yes it is hereditary because of the penis