A group of identical individuals that always produce offspring with the same phenotype when crossed is called:

• A. Purebred
• B. Hybrid
• C. Clone
• D. Mutant

Answer: (A)

The idea here is true-breeding lines: when a group is genetically uniform for a trait, crossing individuals from that group with each other yields offspring that all have the same phenotype for that trait. Each parent contributes the same two alleles, so every offspring ends up with the same genotype and phenotype for that trait. That consistency is what defines a purebred line.

Hybrid would bring in different alleles from diverse backgrounds, often leading to offspring with mixed or dominant traits. A clone refers to producing identical organisms by asexual reproduction, not to crossing them and getting uniform offspring. A mutant describes a deviation from the usual phenotype, not the uniformity described here.