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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

Hemophilia is a sex-linked, recessive trait. Which statement describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman whose father is a hemophiliac?
  1. Each of their sons will have hemophilia.
  2. None of their daughters will have hemophilia.
  3. Their sons have a 25% chance of having hemophilia.
  4. There is a 50% chance that their daughters will have hemophilia.