When a gene at one locus alters the phenotypic expression of a gene at a second locus this is called?

My   Epistasis

Why?: " In epistasis a gene at one locus alters the phenotypic expression of a gene at a second locus."

Hope I helped!:D

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the