A full job description is available on the Mount Pleasant Township website; mpt-pa.com. E-mail resume with certifications to mpt@mpt-pa.com, or submit in person at 31 McCarrell Road, Hickory, PA. Deadline to apply is September 5, 2107.
Genetic changes that are described as de novo (new) mutations can be either hereditary or somatic. In some cases, the mutation occurs in a personâs egg or sperm cell but is not present in any of the personâs other cells. In other cases, the mutation occurs in the fertilized egg shortly after the egg and sperm cells unite.
1 Mutations can occur during DNA replication if errors are made and not corrected in time. 2  Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and radiation. 3  Often cells can recognise any potentially mutation-causing damage and repair it before it becomes a fixed mutation.