How Is ADHD Inherited?
- Is it recessive? dominant? sex-linked?
- ADHD is a dominant trait and is not sex-linked; meaning that it is Autosomal Dominant. Autosomal dominant is a way that a disorder is passed down through families. If you inherit the gene from one parent, there is a possibility of you receiving the disorder. There is a 60% chance that a parent can pass the gene onto their child. However, this is true for each child the parents have. That means that each child's risk for the disease does not depend on whether their sibling has the disease (Medicine Plus).
- Can people with this disorder have children? If so, what is the chance they will pass this disorder on to their child?
- Yes, people with this disorder can have children. There is a even chance of ADHD being passed onto children because it is highly heritable. There is a 60% chance that a child will receive the gene, but not have the disorder.
- What is a Punnett Square?
A Punnett square is a chart which shows/predicts all possible gene combinations in a cross of parents. This chart shows the genotype and phenotype of the child. The males genotype is always shown first, while the female is shown second. To learn more about Punnett squares, click here
https://askabiologist.asu.edu/punnett-squares
- Show a Punnett Square of the chances of inheriting the disorder.
- Capital A stands for ADHD trait and lowercase a stands for no ADHD trait.
- Yes, people with this disorder can have children. There is a even chance of ADHD being passed onto children because it is highly heritable. There is a 60% chance that a child will receive the gene, but not have the disorder.
- https://askabiologist.asu.edu/punnett-squares