Ocean water is sinking at the north atlantic buoy station. what happens when water of a high density sinks?

Ocean water is sinking at the North Atlantic Buoy Station the given things have occurred.  

Explanation:

The way of thermohaline course starts at high scopes, where cold seawater sinks due to its generally high thickness.  

In the Northern Hemisphere, profound sinking to 2000-3000 meters happens just in the North Atlantic, not in the North Pacific on the grounds that the waters of the North Pacific are freezing and not as salty as the waters of the North Atlantic.  

In this way, Earth's profound sea bowls are loaded up with waters from the northern North Atlantic and those that sink close to Antarctica.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."