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Type: Multiple-Choice
Category: DNA, RNA, and Genetics
Level: Grade 12
Author: kathynotghi
Last Modified: 6 years ago

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DNA, RNA, and Genetics Question

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Grade 12 DNA, RNA, and Genetics

Alleles for the A and B blood cell antigens are codominant. The condition where no antigens are present on the blood cells (type O blood) is a recessive trait. Which set of parents will most likely produce a child with type O blood?
  1. one parent with type AB blood, and the other parent with type A blood
  2. one parent with type AB blood and the other parent with type O blood
  3. one parent with heterozygous type A blood, and the other parent with type O blood
  4. one parent with homozygous type A blood, and the other parent with homozygous type B blood