Mendel and the mixed up moggie

Link: http://www.newscientist.com/article/mg15220596.000-review--mendel-and-the-mixed-up-moggie.html

Summary: the passage is bassed on when a woman brings home a cat and she thinks because it is a certain color it should be sex linked by that. she goes by the theory that only females can be calicos (black, red and white).it linked between mendles experiment with One crucial revelation being the difference in the method of sex determination between cats and peas (Gregor Mendel's favourite vegetable)

Questions: Explain the phenomenon being described in the article. N?A
What is the difference between a genotype and a phenotype?phenotype is when your determaning 1:1 or 2:4 percent is this or that while genotype is almost the same but u use letters not whole words and u determine 100% or 50%ect.
List three things you learned from this article in your own words.
What impact would the not understanding genetics have on medicine or agriculture?