Generation X. 1  For a few more years, Gen Xers are projected to remain the âmiddle childâ of generations â caught between two larger generations of the Millennials and the Boomers. 2  Though the oldest Gen Xer is now 50, the Gen X population will still grow for a few more years.
Mutation is the act or process of changing into a different form, or someone or something with an odd or unusual form. When a woman drinks alcohol when she is pregnant and causes the cells of the fetus to change and morph into abnormal cells, this process of the cells changing is an example of mutation.
  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.