The nucleus maintains the security of the genes and controls the functions of the entire cell by regulating gene expression. This is why the nucleus is sometimes referred to as the control center, or the brain, of the cell.
Patagonia - region in southern South America between the Andes and the South Atlantic. Argentina, Argentine Republic - a republic in southern South America; second largest country in South America.
Here are 10 facts about Patagonia that every visitor should know: 1  The term Patagonia comes from the word patagÃ³n used by Magellan in 1520 to describe the native people of the region. 2  The area of Patagonia spans a massive 1,043,076 km squared, occupying almost half of each country and yet only home to less than two million inhabitants. The weather is incredibly unpredictable; never rely on local weather forecasts when planning a trip.