Definition: this is a biochemical process used for determining the order of the nucleotide bases, adenine, guanine, cytosine, and thymine, in any dna molecule. by comparing the dna sequence of two organisms, scientists can see if the organisms are related or not, as well as how closely they are related.

Agene editing technology called crispr-cas9 uses cellular machinery to change the cell's genetic material. how might this technology be useful in treating diseases like cancer?

What is the role of pancreatic juice in digestion?

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?