Question

1. table with genotypes, partially visible
2. for each of the genotypes below determine what phenotypes would be possible.

a. purple flowers are dominant to white flowers.

• pp
• pp
• pp

b. round seeds are dominant to wrinkled seeds.

• rr
• rr
• rr

c. brown eyes are dominant to blue eyes

• bb
• bb
• bb

d. bobtails in cats are recessive.

• tt
• tt
• tt

Explanation:

Step1: Analyze part a (Flower Color)

For flower color, purple (P) is dominant over white (p).

• Genotype \( PP \): Both alleles are dominant, so phenotype is Purple flowers.
• Genotype \( Pp \): Dominant allele (P) is present, so phenotype is Purple flowers.
• Genotype \( pp \): Both alleles are recessive, so phenotype is White flowers.

Step2: Analyze part b (Seed Shape)

Round (R) is dominant over wrinkled (r).

• Genotype \( RR \): Both dominant, phenotype is Round seeds.
• Genotype \( Rr \): Dominant allele (R) present, phenotype is Round seeds.
• Genotype \( rr \): Both recessive, phenotype is Wrinkled seeds.

Step3: Analyze part c (Eye Color)

Brown (B) is dominant over blue (b).

• Genotype \( BB \): Both dominant, phenotype is Brown eyes.
• Genotype \( Bb \): Dominant allele (B) present, phenotype is Brown eyes.
• Genotype \( bb \): Both recessive, phenotype is Blue eyes.

Step4: Analyze part d (Bobtail in Cats)

Bobtail (t) is recessive, so normal tail (T) is dominant.

• Genotype \( TT \): Both dominant, phenotype is Normal tail (not bobtail).
• Genotype \( Tt \): Dominant allele (T) present, phenotype is Normal tail (not bobtail).
• Genotype \( tt \): Both recessive, phenotype is Bobtail.

Answer:

Part a:

• \( PP \): Purple flowers
• \( Pp \): Purple flowers
• \( pp \): White flowers

Part b:

• \( RR \): Round seeds
• \( Rr \): Round seeds
• \( rr \): Wrinkled seeds

Part c:

• \( BB \): Brown eyes
• \( Bb \): Brown eyes
• \( bb \): Blue eyes

Part d:

• \( TT \): Normal tail (not bobtail)
• \( Tt \): Normal tail (not bobtail)
• \( tt \): Bobtail