1 Generation X (born 1961-1981), 88.5 million. 2  Generation Y (born 1982-2001) 18+, 52.0 million. 3  Two-thirds of the remaining 75 million are Gen Y who are under 18.  The remaining one-third (25 to 30 million) is Generation Z.
Introduction The ataxia-telangiectasia mutated (ATM) gene (MIM ID 208900) encodes a protein kinase that plays a significant role in the activation of cellular responses to DNA double-strand breaks through subsequent phosphorylation of central players in the DNA damage-response pathway.
In the past, ATM mutation carriers were identified mainly because they were parents of a child with A-T. With the cloning of the ATM gene, however, physicians or cancer genetics professionals can now conduct genetic testing, analyzing patients' DNA to look for A-Tâassociated mutations in the ATM gene.