genetic science vs recombination

genetic science and recombination both are nouns.

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

genetic science (noun)	recombination (noun)
the branch of biology that studies heredity and variation in organisms	(genetics) a combining of genes or characters different from what they were in the parents
	(physics) a combining of charges or transfer of electrons in a gas that results in the neutralization of ions; important for ions arising from the passage of high-energy particles