Antigen-presenting cell: A cell that can present antigen in a form that T cells can recognize it. The cells that can present antigen include B cells and cells of the monocyte lineage (including macrophages).
Generation X Ages | How Big Is Generation X? The age range for Generation X as of 2016 is 35 to 55 (my broadest definition). In 2011, the first Gen-Xer turned 50 years old and the youngest turned 30. We are currently the âsandwich generationâ in America. We are caring for aging parents and raising more than 50 percent of the nationâs children under 18.
Gen X: Born between 1961 and 1981. According to WikiPedia, Gen X was originally called Gen Bust because their birth rate was vastly smaller than the preceding Baby Boomers. Gen X'ers were the first generation to experience: 1  The highest level of education in the US to date.