Co-Dominant and Incomplete Dominance

Incomplete vs. Codominant Traits

Incomplete= hybrid is a third phenotype that only shows part of the dominant trait

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Incomplete vs. Codominant Traits

Codominant= 2 dominant alleles, both are seen in heterozygous/hybrid

Ex. stripes or spots

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Incomplete vs. Codominant Traits

Incomplete vs. Codominant Traits

Multiple Choice

Red= dominant

White= recessive

What is the genotype of the pink flower?

• RR

• Rr

• rr

Multiple Choice

Incomplete dominance...

• where their is a partial dominant trait in the heterozygous

• always shows the dominant trait, as long as you have 1 capital letter

Multiple Select

What are the key words to think about for codominant traits?

Choose all that apply.

• Blending of colors

• Stripes

• Spots

Multiple Choice

If....

R= red

W= white

What would be the genotype of the heterozygous?

• RR

• Red

• RW

• Red and White Stripes

• WW

For each of the next questions, look at the picture and say what type of trait is being shown.

Multiple Choice

What trait is being shown?

• Incomplete

• Codominance

Multiple Choice

What trait is being shown?

• Incomplete

• Codominance

Multiple Choice

What trait is being shown?

• Incomplete

• Codominance

Multiple Choice

What trait is being shown?

• Incomplete

• Codominance

Multiple Choice

What trait is being shown?

• Incomplete

• Codominance

Multiple Choice

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

• incomplete dominance

• codominance

Match

Match the following

• Incomplete

  Dominance

• Codominance

• A blending

• strips and spots

Partial dominant trait

Get to see both dominant traits at the same time

Incomplete dominance

Codominance

• Partial dominant trait

• Get to see both dominant traits at the same time

• Incomplete dominance

• Codominance