This has some review that you know about…but you might need review.
The image, which I think is from wiki-commons, shows one of Mendel's great errors. One of his "laws" says that genes don't blend. They don't blend…unless they do. In this case, the cross shows what we call "incomplete dominance."
I was going to do some online quizzes…but, the program no longer runs on my computer. I may do them on another machine…or finally adapt a new program.