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Measurements reveal that approzimately half of the dry weight is from proteins. if we assume that...

Measurements reveal that approzimately half of the dry weight is from proteins. if we assume that the average protein has a mass of 30,000Da, estimate the number of proteins within an E. coli cell. round the answer to the nearest millions of proteins. (for example, 4,237,178 proteins -> 4 million proetins, thus the answer would be 4).
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