Biology

1. Understand the terms:
Homozygous: This means that an individual has two identical alleles for a particular gene.

Dominant: A dominant allele is an allele that expresses its phenotype (observable characteristic) even when only one copy of it is present.

2. Analyze each option:
rr: This represents a homozygous recessive pair of alleles. The lowercase “r” indicates a recessive allele, and since both alleles are the same (recessive), it is not the homozygous dominant option.

TT: The uppercase...