* Homozygous Dominant means an individual has two copies of the dominant allele for a particular trait.
Let's analyze each genotype:
* Xx: This genotype is heterozygous, meaning it has one dominant (X) and one recessive (x) allele.
* AA: This genotype is homozygous dominant, as it has two dominant (A) alleles.
* Bb: This genotype is heterozygous, having one dominant (B) and one recessive (b) allele.
* tt: This genotype is homozygous recessive, having two recessive (t) alleles.
Key Point: The provided genotypes represent a mix of homozygous and heterozygous conditions.
