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.
Substitution mutation. Definition. A type of point mutation in which a single nucleotide is substituted with (or exchanged for) a different nucleotide that may result in an altered sequence of amino acid during translation, which may render the newly synthesized protein ineffective.