Question

Taylor and her husband Tyler just had a baby at the hospital. They believe the hospital has switched their baby. Taylor is type O and Tyler is type AB. Their baby, Tyree, is type O. Explain if the hospital switched the baby.

Answer 1

Answer:

The DNA of the baby shares the DNA of both father and mother, and hence a cross link between an O type mother (Taylor) and an AB type father (Tyler) will produce children with blood groups A and B. It will be impossible to give birth to a child with blood group O.