An exceptionally rainy spring caused many mud slides that covered most of the grass plants and their seeds in soil too deep for successful sprouting. A few seeds were covered in less soil and were able to sprout and reproduce A. Gene Flow
B. Genetic Drift

Part a - which gene to compare? in this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?