Concept #1: Traits and Variance

Practice: A trait controlled through polygenic inheritance was observed in a series of experiments. A brown eyed rabbit was mated with a blue eyed rabbit. 130 F2 offspring were produced. 2 offspring had brown eyes and 2 offspring had blue eyes. How many polygenes control eye color in rabbits?

Practice: If a trait is controlled by 5 polygenes, how many phenotypic categories will be observed in the F2 generation?

Practice: Polygenic inheritance is what type of inheritance?