Lecturer
Molecular Biology is not the study of the molecules of living organisms.
Biochemistry, also called Biological Chemistry, fits this definition because it
studies biological molecules and their chemical reactions in cells (metabolism).
The adjective “Molecular” before Biology does not refer to all molecules of living
organisms but only to the two crucial ones: nucleic acids and proteins (structural
and catalytic, as well as motors, membrane transporters and regulators).
Molecular Biology is not the classical study of genes. This corresponds to
Genetics, which deals with genes in relation to heredity, loci and genetic
variation.
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