Molecular Biology

In the twentieth century, the mechanisms governing the specification and transmission of genetic traits were understood for the first time. Living beings are composed of cells, which in turn are composed of many types of chemicals. We are particularly concerned with large ‘macromolecules’ that enable cellular function and propagation. Given that there is specialization among classes of macromolecules, it is necessary to consider how information is conveyed between these classes. Thus the central issues of molecular biology are to identify the macromolecules that carry information, and to determine how that information is used to make other necessary macromolecules.


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