What is codominance?
Codominance: Understanding the Phenotypic Effects of Two Alleles for a Gene

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Biology, Engineering
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University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When alleles do not affect the phenotype
When alleles are recessive
When two alleles for a gene both affect the phenotype
When one allele is completely dominant over the other
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which alleles are involved in determining the ABO blood group?
IA, IB, IC
IA, IC, IO
IB, IC, IO
IA, IB, IO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What blood type results from having one IA and one IB allele?
Type AB
Type B
Type A
Type O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In hens, what feather color results from having one B and one W allele?
Speckled feathers
No feathers
All white feathers
All black feathers
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean when alleles are described as codominant?
One allele is stronger than the other
Both alleles are equally expressed
Neither allele is expressed
Both alleles are recessive
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