Winds and wind systems on the Earth. 1  Wind is formed by the flow of air in horizontal directions. In meteorological definitions the coming direction of the wind is called wind direction. 2  1 m/s = 3.60 km/hr = 2.24 mph = 1.94 knot.
The production of proteins involves two major steps: transcription and translation. Together, transcription and translation are known as gene expression. The process of transcription only involves two molecules: DNA and RNA. A DNA strand provides a template for the synthesis of a complementary RNA strand. This process is used to synthesize any type of RNA from a DNA template. Transcription of a gene produces a messenger RNA (mRNA) molecule.
The translation process builds a polypeptide with the precise sequence of amino acids specified by the mRNA pattern. In eukaryotic cells, the translation process has many similarities but is of even greater complexity. The process of translation can be divided into the stages of initiation, elongation, and termination. Initiation involves at least three other proteins called initiation factors to help bind the mRNA to the smaller subunit of the two-unit ribosome.