1B) (Matson 1986). Polarity is ascertained by identifying the duplex region that is denatured by the helicase. For helicases involved in DNA replication, the polarity of the reaction is strongly indicative of helicase placement on the leading (a 3 ' -5 'polarity) or lagging (a 5 +3 'polarity) strand.NA HELICASE ASSAYS DNA helicases are often first detected by a DNA-dependent or DNA-stimulated NTPase activity. Verification of DNA helicase activity is then accomplished using an assay that reveals the conversion of double-stranded DNA (dsDNA) into two single strands.
1. typical enlistment is 4 years, however during Vietnam 3 year enlistments were allowed. 2. The 3rd Marine Division was reactivated for Korea, and in 1956 moved to Okinawa as the cease fire there looked like it would hold. Air Bases remained active in Okinawa during the entire postwar and Cold War era to date.
The act required all men between the ages of 21 and 30 to register for military service. By the end of World War I, around 2.8 million men had been drafted to serve in the military. During the Vietnam War, the Selective Service Act was a subject of great controversy, but the Act was upheld. Currently, the United States requires all men between the ages of 18 and 25 to register with the Selective Service System.