ascendant vs dominant

ascendant and dominant both are nouns.

Word	Noun	Adjective	Verb	Adverb
ascendant	Yes	Yes	No	No
dominant	Yes	Yes	No	No

ascendant (noun)	dominant (noun)
someone from whom you are descended (but usually more remote than a grandparent)	an allele that produces the same phenotype whether its paired allele is identical or different
position or state of being dominant or in control	(music) the fifth note of the diatonic scale

ascendant (adjective)	dominant (adjective)
tending or directed upward	exercising influence or control
most powerful or important or influential	(of genes) producing the same phenotype whether its allele is identical or dissimilar
	most frequent or common