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.
Generation X is defined as people born from 1965 through 1980 â not just a time when fewer children were born in the United States, but at 16 years, a relative short period in demographic terms. There is power in numbers, and the size of the millennial generation will carry some benefits for its members.