Final answer:
In Biology, High School students need to differentiate between homozygous and heterozygous traits, with examples like RR and rr for homozygous traits.
Explanation:
Homozygous traits involve having an identical pair of alleles for a specific trait. In the given choices, RR and rr represent homozygous traits, whereas Rr is a heterozygous trait where two different alleles are present.
Learn more about Genetics here:
https://brainly.com/question/30459739
