It's helpful here to undo the subject-verb inversion that makes this sentence a question and turn it into a statement: Trump's political views has changed on Israel's war in Gaza. [incorrect] or Trump's political views have changed on Israel's war in Gaza. [correct] The subject is views and the verb is has/have changed. Has always goes with a singular subject, and have with a plural one. Since ...
I am wondering if the following sentence is correct. There are 200 individuals who each have two alleles at single nucleotide site of interest. In my opinion, have should be changed to has. Is it...