Non-Mendelian Inheritance Quiz

Which of the following best describes incomplete dominance?

• Both alleles are fully expressed in the phenotype.

• One allele is completely dominant over the other.

• The phenotype is a blend of both alleles.

• Neither allele is expressed in the phenotype.

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DOK Level 1: Recall

In a cross between a red-flowered plant (RR) and a white-flowered plant (WW), what would be the expected phenotype of the offspring if the trait exhibits incomplete dominance?

• Red flowers

• White flowers

• Pink flowers

• Red and white flowers

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DOK Level 2: Skill/Concept

Which of the following is an example of codominance?

• A pink flower resulting from a red and white flower cross.

• A person with AB blood type.

• A white and black spotted cow.

• A person with type O blood.

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DOK Level 1: Recall

In a cross between a black chicken (BB) and a white chicken (WW), what would be the expected phenotype of the offspring if the trait exhibits codominance?

• Black feathers

• White feathers

• Gray feathers

• Black and white feathers

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DOK Level 2: Skill/Concept

Which of the following statements is true about sex-linked traits?

• They are only found on the Y chromosome.

• They are only found on the X chromosome.

• They can be found on either the X or Y chromosome.

• They are found on autosomes.

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DOK Level 1: Recall

A woman who is a carrier for hemophilia marries a man without hemophilia. What is the probability that their son will have hemophilia? (hemophilia is X-linked and recessive)

• 0%

• 25%

• 50%

• 100%

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DOK Level 2: Skill/Concept

Which blood type is considered the universal donor?

• Type A

• Type B

• Type AB

• Type O

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DOK Level 1: Recall

If a person with blood type AB marries a person with blood type O, what are the possible blood types of their children?

• A and B

• A, B, and O

• AB and O

• A, B, AB, and O

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DOK Level 2: Skill/Concept

Which of the following best describes multiple alleles?

• A gene with only two alleles.

• A gene with more than two alleles.

• A gene that is found on the sex chromosomes.

• A gene that exhibits codominance.

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DOK Level 1: Recall

Explain how incomplete dominance differs from codominance, providing an example for each.

• Incomplete dominance results in a blend of traits, such as pink flowers from red and white parents. Codominance results in both traits being fully expressed, such as AB blood type.

• Incomplete dominance results in both traits being fully expressed, such as AB blood type. Codominance results in a blend of traits, such as pink flowers from red and white parents.

• Incomplete dominance results in one trait being completely dominant over the other. Codominance results in a blend of traits.

• Incomplete dominance and codominance are the same.

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DOK Level 3: Strategic Thinking