The only cells in the human body that do not contain 46 chromosomes are reproductive cells, which only contain 23 chromosomes, according to... 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... 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 the National Human Genome Research Institute. Continue Reading.
Recommended temperatures for beef are: Rare 60C; medium 70C; well done 80C. Baste the meat with the juices at least three times during cooking. When it's done, take out the meat and leave it to rest for at least 20 minutes.
1 After 20 minutes of high heat cooking reduce heat to 350Â°F and continue to roast for 1 hour to 1 hour and 15 minutes OR until the meat thermometer reads 130Â°F for rare doneness OR 140Â°F for medium-rare doneness, that is the way a prime rib really should be served, check your roast after 1 hour cooking time. After 20 minutes of high heat cooking reduce heat to 350Â°F and continue to roast for 1 hour to 1 hour and 15 minutes OR until the meat thermometer reads 130Â°F for rare doneness OR 140Â°F for medium-rare doneness, that is the way a prime rib really should be served, check your roast after 1 hour cooking time.