genetics vs histology

genetics

noun
  • The genetic makeup of a specific individual or species. 

  • The branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA. 

histology

noun
  • The study of the microscopic structure, chemical composition and function of the tissue or tissue systems of plants and animals. 

How often have the words genetics and histology occurred in a corpus of books? (source: Google Ngram Viewer )