Incomplete dominance means that....

• One allele is completely dominant over the other
• Phenotypes blend

• see both phenotypes

• a new phenotype is made

If a flower is both red and white, what is causing this to happen?

• Half Dominance

• Total Dominance

• Incomplete Dominance

• Codominance

If a read and blue fish make purple babies, what is causing this to happen?

• Codominance

• Incomplete Dominance

• Half Dominance

• Total Dominance

What are the genotypes of the grandma and grandpa in the pedigree above? Use the letter H.

• Gma: Hh

  Gpa: hh

• Gma: HH

  Gpa: hh

• Gma: Hh

  Gpa: HH

• Gma: hh

  Gpa: hh

Red is dominant to blue in poison dart frogs. If we cross a Red male with a blue female, is it possible for them to make blue babies? How?

• Yes: both parents would have to be heterozygous for the skin color trait, producing blue babies

• No: They would only produce red babies every time because it is dominant

• Yes: If dad is heterozygous and mom is homozygous recessive, they would have 50 % chance of making blue babies

• No: only two blue frogs can make blue babies because it is recessive

If you breed two organisms, and a percentage of their offspring have the recessive trait, what genotypes do the parents have to have?

• RR

• Rr

• rr

• none

What allele is recessive in blood type?

• O
• B
• A
• AB

In order to produce a child with O blood type, each parent must have at least one what?

• B allele
• A allele
• AB allele
• O allele (represented by an i)

A red fish crosses with a blue fish and they produce 100 offspring. Red is dominant over blue.

If 50 of them are red and the other 50 are blue, what genotypic crossing happened?

• Rr x Rr

• Rr x rr

• RR x Rr

• RR x rr

Match the following as either incomplete or co-dominance

Groups:

(a) Incomplete

,

(b) Co-dominance

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