Definitions for "Spontaneous Mutation"
A mutation that occurs without known exposure to a mutagen.
A mutation that arises from an error in replication.
In nature, when a species encounters a mutation that keeps spreading until the original species becomes a new species, and the old species is extinct.
although Marfan Syndrome is passed from parent to child by autosomal dominant inheritance, it can also occur spontaneously (without apparent reason) in an individual. These patients are usually seriously affected and can pass the disorder to their children. Back to the top
A new change in a gene occurred around the time of conception.
Keywords:  uncommon, happening, rare
an uncommon, although not rare, happening
The development of a hereditary disease for which there is no family history.
A genetic accident which permanently alters certain genetic characteristics.