Pick a heritable trait in your family and build a pedigree going back at least to your grandparents

you will need to pick a heritable trait in your family and build a pedigree going back at least to your grandparents. You can pick any trait that you would like to look at!
What should you look at? Potential genetic disease are always good to look at, for example does your family have a lot of breast cancer? You can also look for simple heritable traits, remember the ear wax example?
I have no idea about my family: I was adopted or my family does not live near me, or I can easily find out information about my family, what can I do?
Ask a friend or relative if you can do their pedigree, a lot of people pay for the service!
If someone is missing on your pedigree, represent them with a question mark and note if they had to have been affected or a carrier or if it is unknown.
What is Due:

The pedigree (like the example above)
A brief written description of what trait you chose to analyze and how it is inherited (is it dominant or recessive, sex-linked, co-dominant or so on)

This is total 10points for this homework
Pedigree Analysis

Pedigree is complete as possible, all formatting is done properly and trait is traced.
7 pts

Written Desciption
Short written description of what the trait is and how it is inherited present.
3 pts