A pair of genes that control a trait is referred to as? by Sunday | Sep 8 | Biology JAMB | 0 comments A. an allele B. recessive C. dominant D. a hybrid Correct Answer: Option A – an allele Users Also Read These:A pair of genes which controls a trait is described as?According to Mendel's first law of inheritance,…Which of the following diseases is transmittable…The pair of genes expressed in a heterozygous…Identical twins inherit their genes from?