What's the difference between molecular biology and comparative biochemistry?

The difference between molecular biology and comparative biochemistry are:

Molecular biology is the branch of biology in which we study about the chemical composition and structure of atoms of macromolecules such as protein and nucleic acid which are the main component of life forming substances, while Comparative biochemistry is a branch of chemistry in which we study the similarities and differences between different biological processes that occurs in different living organisms.

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.

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