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It is true that there are problems that demand immediate attention ; however , few solutions would be found without the help of the wide knowledge foundation generated through basic science . One example of how basic and applied science can work together to solve practical problems occurred after the discovery of DNA structure led to an understanding of the molecular mechanisms governing DNA replication . Strands of DNA , unique in every human , are found in our cells , where they provide the instructions necessary for life . During DNA replication , DNA makes new copies of itself , shortly before a cell divides . Understanding the mechanisms of DNA replication enabled scientists to develop laboratory techniques that are now used to identify genetic diseases , pinpoint individuals who were at a crime scene , and determine paternity .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.