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.
  A mutation is a permanent change in the DNA sequence of a gene.   There are two ways in which a DNA mutation can occur:   1) Mutations can be inherited.This means â¦ that if a parent has a mutation in his or her DNA, then the mutation is passed on to his or her children.   2) Mutations can be acquired.or example, this can happen during crossover during the formation of gametes. Substitution mutations happen when one nucleotide (the smallest unit of DNA) is replaced by another. These are caused by a number of chemicals that look like something in between both of those nucleotides.