Question

date:punnett square practice worksheet1) for each of the genotypes (aa, aa or aa) below determine what the phenotype would be.purple flowers are dominant to white flowers.pp________ pp______ pp______hairy knuckles are dominant to non-hairy knuckles in humans.hh______ hh ______ hh ______bobtails in cats are recessive. normal tails are dominant.tt ______ tt ______ tt ________

Explanation:

Step1: Apply dominant trait rule

For genotypes with at least one dominant allele (uppercase letter), the phenotype is the dominant trait; homozygous recessive (two lowercase letters) shows the recessive trait.

Flower Trait (Purple = Dominant, White = Recessive)

Step2: PP genotype phenotype

PP has dominant P, so purple flowers.

Step3: Pp genotype phenotype

Pp has dominant P, so purple flowers.

Step4: pp genotype phenotype

pp is recessive, so white flowers.

Knuckle Trait (Hairy = Dominant, Non-hairy = Recessive)

Step5: HH genotype phenotype

HH has dominant H, so hairy knuckles.

Step6: Hh genotype phenotype

Hh has dominant H, so hairy knuckles.

Step7: hh genotype phenotype

hh is recessive, so non-hairy knuckles.

Cat Tail Trait (Normal = Dominant, Bobtail = Recessive)

Step8: TT genotype phenotype

TT has dominant T, so normal tail.

Step9: Tt genotype phenotype

Tt has dominant T, so normal tail.

Step10: tt genotype phenotype

tt is recessive, so bobtail.

Answer:

Flowers:

PP: Purple flowers
Pp: Purple flowers
pp: White flowers

Knuckles:

HH: Hairy knuckles
Hh: Hairy knuckles
hh: Non-hairy knuckles

Cat Tails:

TT: Normal tail
Tt: Normal tail
tt: Bobtail