Whereas bacteria only have a single chromosome, eukaryotic species have at least one pair of chromosomes. Most have more than one pair. Another relevant point is that eukaryotic chromosomes are detected only occur during cell division and not during all stages of the cell cycle.
How does it work? In very basic terms, your absorption RV refrigerator works like this. It uses heat, and a combination of ammonia, hydrogen gas, and water. These chemicals react and go through various tubes, and the evaporation and condensation process of these chemicals are what cools the refrigerator. These are basic laws of physics.
How it Works: The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. If the evaporator fan is not working, the freezer or refrigerator will not cool adequately. To determine if the evaporator fan motor is defective, try turning the fan blade by hand.