Understanding Incomplete and Codominance

The green fish offspring in this image is an example of ---

• Incomplete dominance

• Codominance

What is the definition of incomplete dominance?

• A genetic scenario where both alleles are fully expressed in the phenotype.

• A genetic scenario where one allele is not completely dominant over the other, resulting in a blended phenotype.

• A genetic scenario where one allele completely masks the effect of the other.

• A genetic scenario where neither allele is expressed in the phenotype.

Which of the following is an example of incomplete dominance?

• A red and white flower producing red and white spotted offspring.

• A red and white flower producing pink offspring.

• A red and white flower producing only red offspring.

• A red and white flower producing only white offspring.

What is the definition of codominance?

• A genetic scenario where one allele is not completely dominant over the other, resulting in a blended phenotype.

• A genetic scenario where both alleles are fully expressed in the phenotype.

• A genetic scenario where one allele completely masks the effect of the other.

• A genetic scenario where neither allele is expressed in the phenotype.

Which of the following is an example of codominance?

• A red and white flower producing pink offspring.

• A red and white flower producing red and white spotted offspring.

• A red and white flower producing only red offspring.

• A red and white flower producing only white offspring.

In a genetic cross involving codominance, what would be the expected phenotype of offspring from a cross between a black-feathered chicken and a white-feathered chicken?

• All black-feathered chickens.

• All white-feathered chickens.

• Chickens with a mix of black and white feathers.

• Chickens with grey feathers.

Which of the following best describes the phenotype of a heterozygous individual in incomplete dominance?

• The phenotype is a blend of both alleles.

• The phenotype shows only the dominant allele.

• The phenotype shows only the recessive allele.

• The phenotype shows neither allele.

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

• All red-flowered plants.

• All white-flowered plants.

• All pink-flowered plants.

• A mix of red and white-flowered plants.

Which of the following is an example of a genetic cross showing codominance?

• A cross between a red-flowered plant and a white-flowered plant producing pink flowers.

• A cross between a black-feathered chicken and a white-feathered chicken producing chickens with black and white feathers.

• A cross between a tall plant and a short plant producing medium-height plants.

• A cross between a blue-eyed person and a brown-eyed person producing green-eyed offspring.