Since it is recessive, it will be out ruled unless two recessive genes combine. If one is AA and the other is Aa There will be AA, AA, Aa, Aa. AA is dominant, therefore Aa can have the possibility of either trait. so there is 6 possibility.
A recessive trait is a trait that is expressed when an organism has two recessive alleles or forms of a gene. Traits are features of organisms that can be observed, this includes physical characteristics such as hair and eye colour, and also characteristics that may not be readily apparent, e.g. the shape of blood cells.
Thus, the correct option is "0".
Learn more about the punnet square here: https://brainly.com/question/23109015
