Concept #1: Degrees of Dominance
Concept #2: Plieotropy, Epistasis, and Polygenic Inheritence
Practice: A species of bird is known to have black beaks, yellow beaks, or spotted beaks, with patches of black and yellow. There is a single gene locus that determines beak pigment, and the most likely mode of inheritance is _____________________?
Practice: A species of fish have tails that vary in size. It is found that genes at 2 loci, as well as diet, influence tail size. This trait is an example of _________________________?
Practice: A ratio of 9:3:4 is produced during a heterozygote dihybrid cross when one gene pair interacts to control the expression of the second gene pair. This interaction is called _________?