Types of Dominance Practice Activity

When a long-hair angora rabbit is bred with a short-hair rex rabbit, the offspring have hair that is medium length. What type of inheritance is this?

• Incomplete Dominance

• Complete Dominance

• Codominance

Tags

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How are incomplete dominance and codominance different than complete dominance?

• There are multiple recessive phenotypes

• The heterozygous genotype shows a unique phenotype

• Multiple genes influence the same trait

• There is no heterozygous genotype or phenotype

A black sheep is bred with a white sheep. All of their offspring have a phenotype of gray coats. What is the most likely pattern of inheritance for coat color in sheep?

• Codominance

• Lethal Allele Inheritance

• Complete dominance

• Incomplete dominance

In humans, three alleles affect blood type. The A and B alleles are codominant and the O allele is recessive. Which of the following statements about human blood types are TRUE?

• The O blood type will always be expressed in a human's phenotype.

• Human blood type is an example of incomplete dominance.

• The A and B alleles will both be expressed in the heterozygote's phenotype.

• A human will inherit all three alleles from their mom and dad.

Tags

NGSS.HS-LS3-1

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The phenotype of a heterozygote is a mix between both traits is explaining which type of dominance?

• Codominance

• Incomplete Dominance

• Complete Dominance

The phenotype of a heterozygote is that of the dominant allele always shows over the recessive one is explaining which type of dominance?

• Codominance

• Incomplete Dominance

• Complete Dominance

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete Dominance

• Codominance

• Complete Dominance

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

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In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red : 2 roan : 1 white?

• Red mom x Red dad

• Roan mom x Roan dad

• White mom x Roan dad

• Red mom x Roan dad

Tags

NGSS.HS-LS3-1

The red and white camellia flower below is an example of which type of dominance?

• Complete Dominance

• Incomplete Dominance

• Codominance

Tags

NGSS.HS-LS3-1

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