position effect vs consequence

position effect and consequence both are nouns.

Word	Noun	Adjective	Verb	Adverb
position effect	Yes	No	No	No
consequence	Yes	No	No	No

As nouns, consequence is a hypernym of position effect; that is, consequence is a word with a broader meaning than position effect:

position effect: (genetics) the effect on the expression of a gene that is produced by changing its location in a chromosome
consequence: a phenomenon that follows and is caused by some previous phenomenon

Other hypernyms of position effect include effect, event, issue, outcome, result, upshot.

position effect (noun)	consequence (noun)
(genetics) the effect on the expression of a gene that is produced by changing its location in a chromosome	having important effects or influence
	the outcome of an event especially as relative to an individual
	a phenomenon that follows and is caused by some previous phenomenon