| The sequencing of the human genome begun in 1990 | | | | tiny fiber-optic reaction vessels, which make the |
| and took 13 years to complete.Nowadays, DNA | | | | sequencing of hundreds of thousands of DNA |
| sequencing project are more widespread and new | | | | molecules at once possible, unlike the current |
| methods for sequencing the DNA were discovered. | | | | methods which can only sequence short lengths of |
| But first, what is DNA sequencing? | | | | DNA at a time. |
| Well, DNA sequencing means determining what | | | | Another new DNA sequencing technique which |
| nucleotide order a given DNA fragment has, or | | | | promises both faster time and lower costs uses |
| determining the exact sequence of nucleotides in a | | | | colors and lasers - the researchers dyed each of the |
| given sample of DNA. | | | | four blocks of DNA with different colors |
| A sequence of DNA is a 'blueprint' for the body | | | | A DNA sequencing method which is available for |
| because it contains all the information related to that | | | | everyone is pyrosequencing, but it can lead to a few |
| species, and DNA sequencing is trying to discover all | | | | errors. |
| the information hidden inside DNA, information which | | | | Other DNA sequencing methods are |
| can have many medical and biological uses, especially | | | | Nanoporesequencing, or Sequencing by hibridization. |
| at curing genetic and contagious diseases and other | | | | Until now the genomes of some small bacteria and |
| researches. | | | | viruses, have been sequenced and the genomes of |
| Most of the DNA sequencing is currently performed | | | | other larger species and plants, and of course the |
| using the chain termination method, but scientists are | | | | human genome. |
| in the search for new methods that can save | | | | It is hoped that a few more years later the costs of |
| time.For example, a method that is 100 times faster | | | | DNA sequencing for one person will seriously lower, |
| than the old ones was recently discovered.It it called | | | | the medicine will become more personalized, and it will |
| the novel sequencing technique and it uses extremely | | | | be much easier to fight diseases. |