Exploring Non-Mendelian Inheritance Patterns

In a certain plant species, red flowers (R) and white flowers (W) exhibit codominance. What would be the phenotype of the offspring if a red-flowered plant is crossed with a white-flowered plant?

• Red flowers

• White flowers

• Pink flowers

• Red and white spotted flowers

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DOK Level 1: Recall

Which of the following is an example of incomplete dominance?

• A black and white cat producing offspring with black and white patches

• A red and white flower producing pink flowers

• A tall and short plant producing medium height plants

• A blue and yellow bird producing green offspring

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DOK Level 1: Recall

In a monohybrid cross involving codominance, what is the expected phenotypic ratio of the offspring?

• 1:2:1

• 3:1

• 9:3:3:1

• 1:1

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DOK Level 2: Skill/Concept

• Red

• White

• Pink

• Red and white

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DOK Level 1: Recall

Which of the following real-world examples best illustrates codominance?

• A person with AB blood type

• A person with O blood type

• A person with blue eyes

• A person with curly hair

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DOK Level 1: Recall

In a cross between two heterozygous plants showing incomplete dominance, what is the probability of obtaining a homozygous recessive offspring?

• 0%

• 25%

• 50%

• 75%

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DOK Level 2: Skill/Concept

Which of the following statements is true about codominance?

• Only one allele is expressed in the phenotype.

• Both alleles are expressed equally in the phenotype.

• The dominant allele masks the recessive allele.

• The phenotype is a blend of both alleles.

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DOK Level 1: Recall

In a plant species where flower color shows incomplete dominance, a cross between a red-flowered plant and a white-flowered plant results in what percentage of pink-flowered offspring?

• 0%

• 25%

• 50%

• 100%

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DOK Level 2: Skill/Concept

Which of the following is a characteristic of incomplete dominance?

• The heterozygous phenotype is identical to the dominant phenotype.

• The heterozygous phenotype is a blend of the two homozygous phenotypes.

• The recessive allele is completely masked by the dominant allele.

• The heterozygous phenotype shows both alleles equally.

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DOK Level 1: Recall

In a real-world scenario, which of the following inheritance patterns is an example of incomplete dominance?

• A person with wavy hair resulting from one curly-haired and one straight-haired parent

• A person with freckles

• A person with type O blood

• A person with dimples

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DOK Level 2: Skill/Concept