DNA Sequencing and the Future of Medicine

DNA sequencing is one of the many reasons microbiology has made this an exciting time to be alive. By discovering the exact sequence of a DNA molecule’s nucleotides, scientists have a wide open door to explore the outer limits of science.

For example, a polymerase chain reaction can be used to magnify a few copies of DNA thousands or even millions of times over. A PCR primer is used to start the amplification and, when the process is over, scientist have a better idea of the DNA molecule’s sequence.

DNA is considered a polyribo or polyribonucleotide, meaning it has at least thirteen nucleotide monomers that are bonded in a chain (covalently). When this chain can be sequenced, scientists can hope to do everything from cure a disease to create a clone. While some people might find this unsettling, it’s important to remember this is the way of science—especially biology. People were horrified by the idea of puncturing their body with a needle, but then vaccinations and intravenous medicine changed that perception.

One day DNA sequencing will be used to not only cure all diseases, but improve the health of those who are disease-free. Scientists will be able to fortify our DNA against possible threats before they even make contact.

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