MRNA is a single-stranded molecule that carries genetic code from DNA in a cell's nucleus to ribosomes, the cell's protein-making machinery.
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The number of times per week that exercise is performed is known as frequency.
Exercise frequency answers the question how many times you workout per week total. This includes weight training workouts, cardio workouts.This is value that can vary depends on many factors specific to individual (age, weight, condition). Because of this, it’s impossible to say exactly how often(how many times) everyone should be working out per week total.
B. The U.S stock market crash and Franklin D Roosevelt’s policies
Because Thomson's cathode ray tube experiments led to a very important scientific discovery, the electron.