Genetics and Patterns of Inheritance

In a genetic cross showing incomplete dominance, what would be the expected phenotype ratio of the offspring if both parents are heterozygous? DO THE PUNNETT SQUARE CROSS FIRST!

• 1:2:1

• 3:1

• 1:1

• 2:1

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DOK Level 2: Skill/Concept

Which type of dominance is illustrated by a flower that has both red and white petals?

• Complete dominance

• Incomplete dominance

• Codominance

• Partial dominance

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DOK Level 1: Recall

A plant with red flowers (RR) is crossed with a plant with white flowers (WW). If the resulting offspring have pink flowers, what type of dominance is this an example of?

• Complete dominance

• Incomplete dominance

• Codominance

• Partial dominance

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DOK Level 2: Skill/Concept

In a cross between a black chicken (BB) and a white chicken (WW), the offspring are all speckled (BW). What type of dominance does this illustrate?

• Complete dominance

• Incomplete dominance

• Codominance

• Partial dominance

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DOK Level 2: Skill/Concept

If a flower shows incomplete dominance and has alleles R (red) and W (white), what would be the genotype and phenotype of a flower that is pink?

• Genotype: RR, Phenotype: Red

• Genotype: WW, Phenotype: White

• Genotype: RW, Phenotype: Pink

• Genotype: RW, Phenotype: Red and White

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DOK Level 2: Skill/Concept

How does codominance differ from incomplete dominance in terms of phenotype expression?

• In codominance, one allele is completely dominant over the other.

• In incomplete dominance, both alleles are equally expressed.

• In codominance, both alleles are fully expressed, while in incomplete dominance, the alleles blend.

• In incomplete dominance, one allele is completely dominant over the other.

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DOK Level 3: Strategic Thinking

This is an example of ___________?

• Incomplete dominance

• Co-Dominance

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this image is an example of

• codominance

• dominance

• incomplete dominance

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Which allele is expressed if it is present?

• Dominant allele

• Recessive allele

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There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?

• Dominant

• Recessive

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