VOA慢速英语:Mummies Contain Clues to Colon Cancer

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mummy – n. a body treated for burial with chemical preservatives, as was done in ancient Egypt

mummified – v. to help protect (a dead body) by treating it with oils and covering it in strips of cloth

evolution – n. a theory that the differences in living things resulted from natural changes over a very long time

embalm – v. to treat (a dead body) with special chemicals to keep it from breaking down; embalmer – n. one who embalms

genetic mutations – n. A gene mutation is a permanent change in the DNA sequence that makes up a gene

genome sequencing – n. Genome sequencing is figuring out the order of DNA nucleotides, or bases, in a genome—the order of As, Cs, Gs, and Ts that make up an organism's DNA. The human genome is made up of over 3 billion of these genetic letters

hypothesis – n. an idea or theory that is not proven but that leads to further study or discussion