Answer:
The correct option is 'this guinea pig could be homozygous dominant (HH) or heterozygous (Hh).'
Step-by-step explanation:
When both the alleles of a gene are the same then they are termed to be homozygous. If a gene possesses two different types of alleles then it is termed as heterozygous.
A dominant allele is the one which can suppress the effect of a recessive allele. A recessive allele is the one which gets masked by the dominant allele.
For a dominant trait to occur, an organism can either be homozygous dominant for that trait or it can be heterozygous for the trait.