Giving Birth to Someone Else’s Children? by Jessica Hutchison

Part III—Family Members

Dr. Kruskall and her collegues were stumped. They decided to test more of Karen’s family members. Her two brothers had haplotypes of 1 and 3 and 2 and 3, while her mother had haplotypes of 3 and 4. Karen’s father is deceased and could not be tested.

Questions

  1. Add these data to your family tree.
  2. Using what you know about genetics, deduce the likely haplotype combination of Karen’s father and add it to the pedigree.
  3. What do these data indicate about Karen’s relationship to her sons?

Go to Part IV—Hair and Thyroid

Originally published at http://www.sciencecases.org/chimera/chimera3.asp

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