Question

bikini bottom genetics
bikini bottoms have been investigating the genetic makeup of the organisms in this community.
use the information provided and your knowledge of genetics to answer each question.
each genotype below, indicate whether it is a heterozygous (he) or homozygous (ho).

which of the genotypes in #1 would be consideret
which of the genotypes in #1 would be hybrids?
determine the phenotype for each genotype using the information provided about spongebob.
a. yellow body color is dominant to blue.

Explanation:

Step1: Classify genotype sets

Homozygous = same alleles; Heterozygous = different alleles.

• TT, DD, Ff, Bb: TT/DD (Ho), Ff/Bb (He) → Mixed
• TT, tt, DD, dd: all same alleles → Homozygous (HO)
• Ff, Bb: different alleles → Heterozygous (HE)
• tt, dd: same alleles → Homozygous (HO)

Step2: Identify hybrid genotypes

Hybrids = heterozygous genotypes → Ff, Bb

Step3: Assign body phenotypes

Yellow (dominant) = YY, Yy; Blue = yy.

Answer:

Genotype Set Classifications:

1. TT, DD, Ff, Bb: Mixed (Homozygous + Heterozygous)
2. TT, tt, DD, dd: Homozygous (HO)
3. Ff, Bb: Heterozygous (HE)
4. tt, dd: Homozygous (HO)

Hybrid Genotypes:

Ff, Bb

Body Color Phenotypes:

• YY: Yellow body color
• Yy: Yellow body color
• yy: Blue body color