A liver cell and a cheek cell have the same chromosomes. The only cells in the human body that do not contain 46 chromosomes are reproductive cells, which only contain 23 chromosomes, according to... Star Gazing
A beef roast cooked to medium-rare should have an internal temperature of 145Â°F - 150ÂºF after the resting period, and a roast cooked to medium should have an internal temperature of 150Â°F to 160ÂºF. (See the note below). See Beef Doneness for more information on proper cooking temperatures.
1 Regardless of the size of your roast, always cook at 375 degrees, for 20 minutes per pound.  Slice thinly and serve with gravy, mashed potatoes, salad and veggie of choice. You can also slice fresh mushrooms, season with salt and pepper, saute in butter, and add to your favorite canned or jarred beef gravy.