Question

an organism with two dominant alleles or two recessive alleles as its genotype for a trait
allele
gamete
dominant allele
homozygous

Explanation:

The term that matches the description "An organism with two dominant alleles or two recessive alleles as its genotype for a trait" is "Homozygous". An allele is a variant form of a gene, a gamete is a reproductive cell, and a dominant allele is an allele that expresses its trait even in the presence of a different allele. But homozygous specifically refers to having identical alleles (either both dominant or both recessive) for a trait.

Answer:

Homozygous