expression vs genetic science

expression and genetic science both are nouns.

Word	Noun	Adjective	Verb	Adverb
expression	Yes	No	No	No
genetic science	Yes	No	No	No

expression (noun)	genetic science (noun)
the act of forcing something out by squeezing or pressing	the branch of biology that studies heredity and variation in organisms
the feelings expressed on a person's face
a word or phrase that particular people use in particular situations
the style of expressing yourself
expression without words
a group of symbols that make a mathematical statement
the communication (in speech or writing) of your beliefs or opinions
a group of words that form a constituent of a sentence and are considered as a single unit
(genetics) the process of expressing a gene