Scenario: A couple had a child who they discover has a heart defect that will limit what the child can do when they get older. They will never be able to participate in
sports or other strenuous activities for fear that the child's heart will develop an
uneven rhythm and stop functioning. The mother of the child is the oldest of 7 children
and the first to have a child. She is concerned that the heart condition may occur in
the children of her siblings if they reproduce. The father of the child is an only child but
likewise wishes to know how this has happened since there he has no family history of
the disorder on his side. Both sets of grandparents are living and everyone visits a
genetic specialist to have their genomes compared to that of the child with the heart
condition. What the specialist finds is that there is no evidence of the heart condition
in either the parent's or the grandparent's genome. An interview with both of the
parents reveals that neither of them have ever been smokers, exposed to radiation, or
contracted viruses which could cause this disorder. The family and the specialist are
stumped and need assistance in finding how the child developed this heart condition
Claim
Evidence
Reasonings