Fig. 2From: Improved “Origami Bird” Protocol Enhances Japanese Students’ Understanding of Evolution by Natural Selection: a Novel Approach Linking DNA Alteration to Phenotype ChangeGametic mutation box. When the result of roulette in GMB is like this picture, the rotatable fifth base (see arrow in this figure) of the upper strand of DNA will change A to C. By reference to the mutation table (Fig. 3), this DNA change will cause the shift of “size of the wings”: the front wing will be smaller and the back wing will be biggerBack to article page