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Bibliotek

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

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Sidst opdateret 20 days ago
19 Spørgsmål
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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.

Spørgsmål 1
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?

Spørgsmål 2
2.

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?

Spørgsmål 3
3.

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?

Spørgsmål 4
4.

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.

Spørgsmål 5
5.

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?

Spørgsmål 6
6.

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?

Spørgsmål 7
7.

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?

Spørgsmål 8
8.

Which of these 2 examples show Co-Dominance?

Spørgsmål 9
9.

Explain the difference between Incomplete Dominance and Co-Dominance.

Spørgsmål 10
10.

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?

Spørgsmål 11
11.

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?

Spørgsmål 12
12.

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?

Spørgsmål 13
13.

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!!!

Spørgsmål 14
14.

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!!!

Spørgsmål 15
15.

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"?

Spørgsmål 16
16.

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"?

Spørgsmål 17
17.

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"?

Spørgsmål 18
18.

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!!!

Spørgsmål 19
19.

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!!!