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2. What are codominant alleles?

  • Pairs of alleles that both affect the phenotype when present in a heterozygote.
  • Alleles that are different.
  • Alleles that are the same.
  • Pair of alleles that do not affect the phenotype when present in a heterosygote.

3. Are ABO blood groups co-dominant?

  • Yes
  • No

4. What is a carrier?

  • A person who carries a phenotype.
  • A person who carries a disease and exhibits symptoms.
  • A carrier is someone who carries the disease but doesn't exhibit symptoms of the disease
  • A person who carries a genotype.

5. What are the blood groups?

  • A, B, O, AB, AO, BO
  • A, B, O, AB
  • A, B, C, AB
  • A, B, AB
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