In dogs, an allergenic fur coat is dominant to a hypoallergenic fur coat. Dogs with an allergenic fur coat cause allergies, but dogs with the hypoallergenic fur coat do not cause allergies.

The black coat color is also dominant to white fur color.

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Peter has horrible allergies, but he really wants a dog.

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He goes to a dog breeder and says he wants a hypoallergenic Labradoodle with black fur.

Use the table of traits below to help you determine the phenotypes of the different dogs.

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Meet Apollo! This male Labrador's genotype is AaBb.
What gametes can he produce?

ab, ab, ab, ab

AB, AB, AB, AB

aB, ab, aB, ab

AB, Ab, aB, ab

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Meet Banjo! This male Labrador's genotype is AaBB.
What gametes can he produce?

aB, ab, aB, ab

AB, Ab, aB, ab

AB, AB, aB, aB

ab, ab, ab, ab

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Meet Cleo! This female Poodle's genotype is aabb.
What gametes can she produce?

aB, ab, aB, ab

AB, Ab, aB, ab

AB, AB, AB, AB

ab, ab, ab, ab

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1

Meet Diana! This female Poodle's genotype is AaBb.
What gametes can she produce?

AB, AB, AB, AB

aB, ab, aB, ab

ab, ab, ab, ab

AB, Ab, aB, ab

Remember: Peter wants a hypoallergenic Labradoodle with black fur. You will now perform four dihybrid crosses to determine which parents have the greatest chance of creating the puppy Peter needs.

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Create a cross between Apollo and Cleo.
AaBb x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Ɛhia

1

Create a cross between Apollo and Diana.
AaBb x AaBb
What are the chances a puppy will be hypoallergenic with black fur?

Ɛhia

1

Create a cross between Banjo and Cleo.
AaBB x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Ɛhia

1

Create a cross between Banjo and Diana.
AaBB x AaBb
What are the chances a puppy will be hypoallergenic with black fur?

Ɛhia

1

Which two dogs should the dog breeder cross in order to have the highest chance of making a hypoallergenic Labradoodle with black fur? How do you know? Support your answer with at least one piece of evidence.

Copy of Labradoodle Genetics Part 2: Design A Dog (2026) (5/2/2026)

Copy of Labradoodle Genetics Part 2: Design A Dog (2026) (5/2/2026)

In dogs, an allergenic fur coat is dominant to a hypoallergenic fur coat. Dogs with an allergenic fur coat cause allergies, but dogs with the hypoallergenic fur coat do not cause allergies.

The black coat color is also dominant to white fur color.

Peter has horrible allergies, but he really wants a dog.

He goes to a dog breeder and says he wants a hypoallergenic Labradoodle with black fur.

Use the table of traits below to help you determine the phenotypes of the different dogs.

Meet Apollo! This male Labrador's genotype is AaBb.What gametes can he produce?

Meet Apollo! This male Labrador's genotype is AaBb.

What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.

What gametes can he produce?

Meet Cleo! This female Poodle's genotype is aabb.What gametes can she produce?

Meet Cleo! This female Poodle's genotype is aabb.

What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.

What gametes can she produce?

Remember: Peter wants a hypoallergenic Labradoodle with black fur. You will now perform four dihybrid crosses to determine which parents have the greatest chance of creating the puppy Peter needs.

Create a cross between Apollo and Cleo. AaBb x aabbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBb x aabb

Create a cross between Apollo and Diana. AaBb x AaBbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBb x AaBb

Create a cross between Banjo and Cleo. AaBB x aabbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBB x aabb

Create a cross between Banjo and Diana. AaBB x AaBbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBB x AaBb

Which two dogs should the dog breeder cross in order to have the highest chance of making a hypoallergenic Labradoodle with black fur? How do you know? Support your answer with at least one piece of evidence.

In dogs, an allergenic fur coat is dominant to a hypoallergenic fur coat. Dogs with an allergenic fur coat cause allergies, but dogs with the hypoallergenic fur coat do not cause allergies.

The black coat color is also dominant to white fur color.

Peter has horrible allergies, but he really wants a dog.

He goes to a dog breeder and says he wants a hypoallergenic Labradoodle with black fur.

Use the table of traits below to help you determine the phenotypes of the different dogs.

The dog breeder has a male with the genotype AaBB. This Labradoodle would be...

The dog breeder has a different male with the genotype AaBb. This Labradoodle would be...

The dog breeder has a female with the genotype AaBb. This Labradoodle would be...

The dog breeder has a different female with the genotype aabb. This Labradoodle would be...

Meet Apollo! This male Labrador's genotype is AaBb.What gametes can he produce?

Meet Apollo! This male Labrador's genotype is AaBb.

What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.

What gametes can he produce?

Meet Cleo! This female Poodle's genotype is aabb.What gametes can she produce?

Meet Cleo! This female Poodle's genotype is aabb.

What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.

What gametes can she produce?

Remember: Peter wants a hypoallergenic Labradoodle with black fur. You will now perform four dihybrid crosses to determine which parents have the greatest chance of creating the puppy Peter needs.

Create a cross between Apollo and Cleo. AaBb x aabbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBb x aabb

Create a cross between Apollo and Diana. AaBb x AaBbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBb x AaBb

Create a cross between Banjo and Cleo. AaBB x aabbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBB x aabb

Create a cross between Banjo and Diana. AaBB x AaBbWhat are the chances a puppy will be hypoallergenic with black fur?

AaBB x AaBb

Which two dogs should the dog breeder cross in order to have the highest chance of making a hypoallergenic Labradoodle with black fur? How do you know? Support your answer with at least one piece of evidence.

The dog breeder has a male with the genotype AaBB. This Labradoodle would be...

The dog breeder has a different male with the genotype AaBb. This Labradoodle would be...

The dog breeder has a female with the genotype AaBb. This Labradoodle would be...

The dog breeder has a different female with the genotype aabb. This Labradoodle would be...

Meet Apollo! This male Labrador's genotype is AaBb.
What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.
What gametes can he produce?

Meet Cleo! This female Poodle's genotype is aabb.
What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.
What gametes can she produce?

Create a cross between Apollo and Cleo.
AaBb x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Apollo and Diana.
AaBb x AaBb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Banjo and Cleo.
AaBB x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Banjo and Diana.
AaBB x AaBb
What are the chances a puppy will be hypoallergenic with black fur?

Meet Apollo! This male Labrador's genotype is AaBb.
What gametes can he produce?

Meet Banjo! This male Labrador's genotype is AaBB.
What gametes can he produce?

Meet Cleo! This female Poodle's genotype is aabb.
What gametes can she produce?

Meet Diana! This female Poodle's genotype is AaBb.
What gametes can she produce?

Create a cross between Apollo and Cleo.
AaBb x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Apollo and Diana.
AaBb x AaBb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Banjo and Cleo.
AaBB x aabb
What are the chances a puppy will be hypoallergenic with black fur?

Create a cross between Banjo and Diana.
AaBB x AaBb
What are the chances a puppy will be hypoallergenic with black fur?