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.
1968: Martin Luther King shot dead The American black civil rights leader, Dr Martin Luther King, has been assassinated. Dr King was shot dead in the southern US city of Memphis, Tennessee, where he was to lead a march of sanitation workers protesting against low wages and poor working conditions