Question

What word is used to describe the possession of one dominant allele and one recessive allele?

Answer 1

 The word would be Heterozygous

Answer 2

Heterozygous is the word used to describe the possession of one dominant allele and one recessive allele. For example, in hybrid tall plant (Tt) genes are present. T is dominant gene and its allele t is recessive gene. In heterozygous organisms dominant allele is expressed and recessive allele is unexpressed in phenotype.