Answer:It is this coupling of chemistry and movement that gives proteins the ... to place the protein in a particular location in the cell—an example is the SH2 ... At one level, the cell controls how many molecules of each enzyme it makes ... One of the best understood pump proteins is the calcium transport protein from muscle cells.
Explanation:
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La ciencia es la progresiva aproximación del hombre al mundo real (Max Planck)
The answer is B: Sister chromatid
