Question

1. for each of the genotypes below determine what phenotypes would be possible.

purple flowers are dominant to white brown eyes are dominant to blue
pp bb
pp bb
pp bb
round seeds are dominant to wrinkled bobtails are recessive (to long tails)
rr tt
rr tt
rr tt

Explanation:

• Purple flowers (dominant) and white flowers (recessive):
• For \(PP\): Since it has two dominant alleles, the phenotype is purple flowers.
• For \(Pp\): It has one dominant allele, so the phenotype is purple flowers (dominant allele masks the recessive one).
• For \(pp\): It has two recessive alleles, so the phenotype is white flowers.
• Brown eyes (dominant) and blue eyes (recessive):
• For \(BB\): Two dominant alleles, phenotype is brown eyes.
• For \(Bb\): One dominant allele, phenotype is brown eyes (dominant allele masks the recessive one).
• For \(bb\): Two recessive alleles, phenotype is blue eyes.
• Round seeds (dominant) and wrinkled seeds (recessive):
• For \(RR\): Two dominant alleles, phenotype is round seeds.
• For \(Rr\): One dominant allele, phenotype is round seeds (dominant allele masks the recessive one).
• For \(rr\): Two recessive alleles, phenotype is wrinkled seeds.
• Bobtails (recessive) and long tails (dominant):
• For \(TT\): Two dominant alleles (for long tails), phenotype is long tails.
• For \(Tt\): One dominant allele (for long tails), phenotype is long tails (dominant allele masks the recessive one).
• For \(tt\): Two recessive alleles (for bobtails), phenotype is bobtails.

Answer:

Trait	Genotype	Phenotype
Purple/White flowers	\(Pp\)	Purple flowers
Purple/White flowers	\(pp\)	White flowers
Brown/Blue eyes	\(BB\)	Brown eyes
Brown/Blue eyes	\(Bb\)	Brown eyes
Brown/Blue eyes	\(bb\)	Blue eyes
Round/Wrinkled seeds	\(RR\)	Round seeds
Round/Wrinkled seeds	\(Rr\)	Round seeds
Round/Wrinkled seeds	\(rr\)	Wrinkled seeds
Bobtail/Long - tail	\(TT\)	Long tails
Bobtail/Long - tail	\(Tt\)	Long tails
Bobtail/Long - tail	\(tt\)	Bobtails