The surface of viruses includes many copies of one type of protein that binds, or adsorbs, specifically to multiple copies of a receptor protein on a host cell. This interaction determines the host range of a virus and begins the infection process (Figure 6-15).
Civil rights leader Andrew Young, left, and others on the balcony of the Lorraine Motel point in the direction where gunshots came from after the assassination of civil rights leader Martin Luther King Jr. on April 4, 1968.
Shortly after noon on November 22, 1963, President John F. Kennedy was assassinated as he rode in a motorcade through Dealey Plaza in downtown Dallas, Texas. 1  Campaigning in Texas. 2  Morning in Fort Worth. 3  On to Dallas. 4  The Assassination. 5  The President's Funeral. 6  The Warren Commission. 7  The House Select Committee on Assassinations.