A gene has four possible
alleles for coat color and
there are four different colors
of animal coats found in a
given population. What
causes this?
A. codominance
B. incomplete dominance
C. multiple alleles

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?