An organism that contains two of the same alleles for a trait is said to be _______ for that trait.. A. heterozygous. B. homozygous. C. recessive. D. dominant
The correct answer among the chocies listed above is option B. An organism that contains two of the same alleles for a trait is said to be homozygous. It describes a genotype of two identical alleles. Other is called as heterozygous.