Question

Which describes the mating of organisms that have different homozygous alleles for a single trait? monohybrid cross dihybrid cross homozygous cross heterozygous cross

Answer 1

Phenotype. 
Genotype is the genetic makeup, and phenotype is the physical characteristic.

Answer 2

The correct answer for your question is Monohybrid Cross.

Monohybride cross is a process of mating two organism with different variations with one genetic chromosomes.

Basically the monohybride cross is processed under the first law of genetics which we call the Law of segregation. A cross between two parents with a contrasting trait is known as the monohybride cross.