Which one of the following pair of alleles shows homozygous dominate genotype tt tt tt

TT

Explanation:

Dominant alleles are the ones in uppercase and recessive in lowercase, but we see one that has uppercase and lowercase. Well, it is heterozygous. Homozygous are genotypes that have two equal alleles, like tt or TT. Heterozygous have two different. Tt is heterozygous TT is homozygous dominant. Also tt are homozygous recessive, which means that it has both non-dominant alleles.

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i think it is dna, i'm not totally sure but i think it might be.