I believe alleles for the same trait are separated from each other during the process of meiosis.
Ribosome are where RNA is translated into protein. This process is called protein synthesis. Protein synthesis is very important to cells, therefore large numbers of ribosomes are found in cells. Ribosomes float freely in the cytoplasm, and are also bound to the endoplasmic reticulum (ER).
Prokaryotic protein synthesis can be fairly fast because one gene can be transcribed and translated simultaneously. Eukaryotic synthesis is slower, but more precious. They can "check" the mRNA before it is translated into protein.
In the two-stage cooling method, time allowed to cool food from 135 degrees F or more to 70 degrees F or less can be four to six hours.