sequence - v. to determine the order of chemical constituents (such as amino-acid residues or nucleic-acid bases)

DNA - n. short for deoxyribonucleic acid -- a substance that carries genetic information in the cells of plants and animals

sample - n. a group of people or things that are taken from a larger group and studied, tested, or questioned to get information

draft - n. a version of something (such as a document) that you make before you make the final version

enormous - adj. very great in size or amount

track - v. to follow and find (someone or something) especially by looking at evidence