An organism that has one dominant allele and one recessive allele for a trait is referred to as being for that trait.

Heterozygous

Explanation:

Hetero is derived from the root meaning 2 different. Since the organism has 2 different alleles for the trait, it is heterozygous.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .