An organism that has two different alleles for a trait is called:

An organism that has two different alleles for a trait is called:

• A. Hybrid
• B. Purebred
• C. Homozygous
• D. Monohybrid

Answer: (A)

Having two different alleles for a trait means the organism is heterozygous. This term describes the genotype of an individual for that gene: one allele from each parent, producing a different pair like A and a. The word hybrid is related in everyday language, since hybrids come from different parents and often carry different alleles, but the precise genetic term for the organism’s genotype is heterozygous. Purebred or homozygous refers to two identical alleles (like AA or aa), while monohybrid describes a cross involving one trait, not the genotype of a single individual. So the correct concept is heterozygous.

Having two different alleles for a trait means the organism is heterozygous. This term describes the genotype of an individual for that gene: one allele from each parent, producing a different pair like A and a. The word hybrid is related in everyday language, since hybrids come from different parents and often carry different alleles, but the precise genetic term for the organism’s genotype is heterozygous. Purebred or homozygous refers to two identical alleles (like AA or aa), while monohybrid describes a cross involving one trait, not the genotype of a single individual. So the correct concept is heterozygous.