Biotechnology and Molecular biology

Biotechnology noun - The branch of molecular biology that studies the use of microorganisms to perform specific industrial processes.

Molecular biology and biotechnology are semantically related. In some cases you can use "Molecular biology" instead a noun "Biotechnology".

Molecular biology noun - The branch of biology that studies the structure and activity of macromolecules essential to life (and especially with their genetic role).

Biotechnology and molecular biology are semantically related. Sometimes you can replace term "Biotechnology" with "Molecular biology", this terms are similar.