Patterns of inheritance have the following modes of inheritance: autosomal dominant, autosomal recessive, X linked (recessive), y-linked.
Here is a sample pedigree showing 3 generations:

What are the relationships between...
1 and 5 Mother (1) and Son (5) 1 and 2_______
1 and 10______ 4 and 5______
3 and 5______ 5 and 8________
8 and 10________
1 and 3_______

Now that you have had a chance to familiarize yourself with a pedigree chart, you will now apply what you have learned about genetics in the construction of pedigrees for the characters in the "Harry Potter" series.