Incomplete Dominance occurs when an organism has two different alleles (genes) and instead of one being dominant over the other, the two genes blend together creating a third phenotype (physical trait).

For example: Let’s say that a flower received a RED allele (gene) from “mom” and a WHITE allele (gene) from “dad”. The flower would be PINK because the RED and WHITE alleles would blend (mix) together.

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1

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Incomplete Dominance?

White

Black and White Spots

Gray

Black

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1

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Incomplete Dominance?

Yellow

Green

Blue

Blue and Yellow Stripes

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1

A baby receives a curly hair gene from dad and straight hair gene from mom. What type of hair would the baby have if the rules of Incomplete Dominance apply?

Curly and Straight

Straight

Curly

Wavy

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1

Which of these 2 examples show Incomplete Dominance?

Flowers

Cows

Co-Dominance occurs when an organism has two different alleles (genes) and BOTH GENES SHOW UP in the phenotype.

For example: Let’s say that a flower received a RED allele and a WHITE allele from its parents. The flower would be have RED AND WHITE SPOTS. Both the red and white genes are equally dominant, so they both show up.

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1

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Co-Dominance?

Gray

Black and White Spots

White

Black

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1

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Co-Dominance?

Green

Blue

Yellow

Blue and Yellow Stripes

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1

A baby receives one “Type A blood” allele from dad and one “Type B blood” allele from mom. What type of blood would the baby have if it follows the rules of Co-Dominance?

Type B

Type O

Type AB

Type A

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1

Which of these 2 examples show Co-Dominance?

Flowers

Cows

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1

Explain the difference between Incomplete Dominance and Co-Dominance.

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1

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for black chickens?

WW

BW

BB

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1

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for white chickens?

WW

BW

BB

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1

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for erminette chickens?

BB

BW

WW

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1

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
If two erminette chickens were crossed, what are the expected phenotypic outcomes?
Show a Punnett square to support your answer!!!

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1

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks?
Show a Punnett square to support your answer!!!

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1

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RR"?

Red and White Spots

White

Pink

Red

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1

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "WW"?

Red and White Spots

Pink

Red

White

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1

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RW"?

Pink

Red

Red and White Spots

White

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1

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
A pink-flowered plant is crossed with a white-flowered plant. What is the probability of producing a pink-flowered plant?
Show a Punnett square to support your answer!!!

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1

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What cross will produce the most pink-flowered plants?
Show a Punnett square to support your answer!!!

Copy of Tuesday (01/31) - Incomplete vs. Co-Dominance Practice (1/15/2025)

Copy of Tuesday (01/31) - Incomplete vs. Co-Dominance Practice (1/15/2025)

Incomplete Dominance occurs when an organism has two different alleles (genes) and instead of one being dominant over the other, the two genes blend together creating a third phenotype (physical trait).

For example: Let’s say that a flower received a RED allele (gene) from “mom” and a WHITE allele (gene) from “dad”. The flower would be PINK because the RED and WHITE alleles would blend (mix) together.

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Incomplete Dominance?

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Incomplete Dominance?

A baby receives a curly hair gene from dad and straight hair gene from mom. What type of hair would the baby have if the rules of Incomplete Dominance apply?

Which of these 2 examples show Incomplete Dominance?

Co-Dominance occurs when an organism has two different alleles (genes) and BOTH GENES SHOW UP in the phenotype.

For example: Let’s say that a flower received a RED allele and a WHITE allele from its parents. The flower would be have RED AND WHITE SPOTS. Both the red and white genes are equally dominant, so they both show up.

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Co-Dominance?

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Co-Dominance?

A baby receives one “Type A blood” allele from dad and one “Type B blood” allele from mom. What type of blood would the baby have if it follows the rules of Co-Dominance?

Which of these 2 examples show Co-Dominance?

Explain the difference between Incomplete Dominance and Co-Dominance.

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for black chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for white chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for erminette chickens?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "RR"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "WW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "RW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What cross will produce the most pink-flowered plants? Show a Punnett square to support your answer!!!

Incomplete Dominance occurs when an organism has two different alleles (genes) and instead of one being dominant over the other, the two genes blend together creating a third phenotype (physical trait).

For example: Let’s say that a flower received a RED allele (gene) from “mom” and a WHITE allele (gene) from “dad”. The flower would be PINK because the RED and WHITE alleles would blend (mix) together.

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Incomplete Dominance?

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Incomplete Dominance?

A baby receives a curly hair gene from dad and straight hair gene from mom. What type of hair would the baby have if the rules of Incomplete Dominance apply?

Which of these 2 examples show Incomplete Dominance?

Co-Dominance occurs when an organism has two different alleles (genes) and BOTH GENES SHOW UP in the phenotype.

For example: Let’s say that a flower received a RED allele and a WHITE allele from its parents. The flower would be have RED AND WHITE SPOTS. Both the red and white genes are equally dominant, so they both show up.

A puppy receives a black allele from mom and a white allele from dad. What color would the puppy be if fur color follows the rules of Co-Dominance?

A plant receives one blue allele and one yellow allele from its parents. What color would the plant be if leaf color follows the rules of Co-Dominance?

A baby receives one “Type A blood” allele from dad and one “Type B blood” allele from mom. What type of blood would the baby have if it follows the rules of Co-Dominance?

Which of these 2 examples show Co-Dominance?

Explain the difference between Incomplete Dominance and Co-Dominance.

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for black chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for white chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.What is the genotype for erminette chickens?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "RR"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "WW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What is the phenotype of a plant with the genotype "RW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.What cross will produce the most pink-flowered plants? Show a Punnett square to support your answer!!!

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for black chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for white chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for erminette chickens?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RR"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "WW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What cross will produce the most pink-flowered plants?
Show a Punnett square to support your answer!!!

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for black chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for white chickens?

In some chickens, the gene for feather color is controlled by Co-Dominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
What is the genotype for erminette chickens?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RR"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "WW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What is the phenotype of a plant with the genotype "RW"?

In snapdragons, flower color is controlled by Incomplete Dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink.
What cross will produce the most pink-flowered plants?
Show a Punnett square to support your answer!!!