Genes
The organism that has two different alleles for the same trait is called heterozygous. This also refers to a cell or an individual that has two different forms of gene.
There is no particular relationship between organisms that have identical alleles for a particular trait.
It depends on the organism but humans have two alleles.
Two copies of a gene are called alleles. Alleles can be the same (homozygous) or different (heterozygous).
Alleles
Diploid organisms, like humans, have two alternate like alleles for every gene.
The genes an organism contains is called the organism's genotype.
homozygous
In eyes, it would be brown is dominant, and blue is recessive. Free earlobe allele is said to be dominant over the attached earlobe allele. When an organism has two dominant alleles for a trait, it is called homozygous dominant. Two recessive alleles for a trait is homozygous recessive.
When you have two identical alleles you are said to be homozygous for that particular trait. If the trait is dominant, then you are homozygous dominant. If the trait is recessive, then you are homozygous recessive.
Heterozygous.
Alternative forms of a gene are called alleles. Alleles are different versions of a gene that can result in variations in traits or characteristics. In diploid organisms, individuals inherit two alleles for each gene, one from each parent.