Meaning of the word "molecular biology" in English

What does "molecular biology" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

molecular biology

US /məˈlɛkjʊlər baɪˈɒlədʒi/
UK /məˈlɛkjʊlə baɪˈɒlədʒi/

Noun

the branch of biology that deals with the structure and function of macromolecules (e.g., proteins and nucleic acids) essential to life

Example:
She is pursuing a Ph.D. in molecular biology.
Advances in molecular biology have revolutionized medicine.