Ocean water in poles are cold and dense because it receives only forty percentage of heat compared to heat received by equator region. The cold water is more dense and little bit heavier than warm water.
The deep ocean receives less sunlight resulting in less warming. Cold water (denser) sinks below warm water resulting in coldness in deep. Since, the ocean is not standing still, variation in "temperature and density" constantly replace the bottom layer with cold water.
At high latitudes, ocean water receives less sunlight. Thus, the surface waters in the Arctic and Antarctica are not warmed much; in fact they are very cold
rhe mRNA (messenger RNA) takes the transcribed RNA strand to ribosomes in the in the cytoplasm. Here, tRNA will attach to codons using anticodons. The tRNA will also bring amino acids that will make a polypeptide chain. This makes proteins.
