Baking time 350 degrees 1 hour for every 1 1/2 pound. I use 2 pounds of chuck and 1 pound of sausage in my meatloaf and I always bake it at 350 for at least 3 hours but like I recommend cover with foil until the last 15 mins.aking time 350 degrees 1 hour for every 1 1/2 pound. I use 2 pounds of chuck and 1 pound of sausage in my meatloaf and I always bake it at 350 for at least 3 hours but like I recommend cover with foil until the last 15 mins.
Quick Answer. Ethanol is used in DNA extraction to force the DNA to precipitate in a solution. In order to collect a DNA sample, cells are broken down through agitation, then mixed with water, salt and ethanol to create an aqueous solution.
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. The DNA will be found at the interface between the two phases. 2  DNA is the precipitated by mixing with cold ethanol or isopropanol and then centrifuging. 3  The DNA is insoluble in the alcohol and will come out of solution, and the alcohol serves as a wash to remove the salt previously added.