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.
If you let the preparation sit for 15 minutes or so, the DNA will float to the top of the alcohol. You can usually get more DNA to precipitate from the solution by using one of the DNA-collecting tools (such as a glass or paper clip hook) to gently lift the water solution up into the alcohol.