Question

dominant color fur = black (b); recessive color fur = tan (b)
genotype bb =
genotype bb = homozygous dominant
heterozygous
genotype bb = homozygous recessive
and
and
and
(need a refresher? watch this video on heterozygous and homozygous)

Explanation:

Step1: Recall Genotype Terms

Homozygous dominant has two dominant alleles (BB), heterozygous has one dominant and one recessive (Bb), homozygous recessive has two recessive alleles (bb).

Step2: Match Genotypes to Terms

• Genotype BB: Two dominant alleles (B), so homozygous dominant.
• Genotype Bb: One dominant (B) and one recessive (b), so heterozygous.
• Genotype bb: Two recessive alleles (b), so homozygous recessive.

Answer:

• Genotype BB = homozygous dominant and black fur (phenotype)
• Genotype Bb = heterozygous and black fur (phenotype)
• Genotype bb = homozygous recessive and tan fur (phenotype)

(For the dropdowns: BB → homozygous dominant; Bb → heterozygous; bb → homozygous recessive. The second dropdown for each is phenotype: BB and Bb show black, bb shows tan.)