See more pictures of alternative fuel vehicles. You've probably heard about fuel cells. In 2003, President Bush announced a program called the Hydrogen Fuel Initiative (HFI) during his State of the Union Address.
Phenol-Chloroform Extraction. Purpose: Phenol-chloroform extractions are done when you need to purify DNA from a solution that also has proteins. The DNA will dissolve in the aqueous layer, and everything else will go into the non-aqueous layer.. Phenol:chloroform. 1  Add one equal volume of phenol:chloroform:IAA (found in 4C in room 263) to DNA solution. 2  The phenol:chloroform solution has two layers â be sure to take the bottom layer!!! 3  Mix gently; spin for 5 minutes at max speed. 4  Remove aqueous layer (top layer) to a new tube.
Extraction of DNA is often an early step in many diagnostic processes used to detect bacteria and viruses in the environment as well as diagnosing disease and genetic disorders.he DNA was extracted from the thermal STIV virus and cut with three separate restriction enzymes. (picture supplied by the author). Instrumentation used in DNA Extraction -. This bead beater is used in the breaking apart or lysing of cells in the early steps of extraction in order to make the DNA accessible.