LEIA O TEXTO: ...Deoxyribonucleic acid ... DNA. It is one of the most important discoveries of all time and remains the basis of information for many medical advances. There is much to study and understand about the power of DNA. That is the intention behind DNA Day, a day for students, teachers and the public to learn more about genetics and genomics. This celebration celebrates two critical moments in the history of genetics - 1) The discovery of the double helix structure of DNA in 1953 and 2) The completion of the Human Genome Project in 2003, a ten-year project to sequence the entire human being. genome. Why are these discoveries so important? The first helped us to discover how DNA is built. DNA is made up of two strands that wind together to create a double helix. The understanding of this and its ability to relax for replication and repair led to research that revealed what it does, how it works, what happens when it changes and how its message is transmitted from generation to generation. The Human Genome Project took that knowledge and made it functional. Sequencing the human genome is what allowed us to change medicine from just treating symptoms to something that can be completely adapted to the individual, analyzing its unique DNA composition. This change in the way we think about medical care has resulted in an entirely new discipline, known as precision medicine.To fully appreciate the potential of precision medicine, you need to understand the structure of DNA and how it is unique from person to person. Most humans have 23 pairs of chromosomes that are transmitted or inherited from their parents, one from each pair from the mother and one from the father. A set of genes is located on each chromosome. In total, humans have 20,000 to 25,000 through the genome. Each gene is composed of a combination of 4 nitrogen bases - Adenine, Thymine, Cytosine, Guanine. These bases pair in a specific way (A-T, C-G) to create the DNA double helix ladder structure; the base pairs form the steps of the ladder.There are more than 3 million bases in human DNA. The human genome is the "code" formed by these bases. This code is 99% the same in all human beings. It is the 1% that makes each individual unique. You may have more of your DNA in common with some groups of people than with others. For example, you have more DNA shared with those who have ethnic origins similar to yours and even more among members of your biological family. ................... fonte: site do laboratório myheritage.com ............................................... 1) Marque a questão que não se aplica ao texto: *
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o estudo do genoma humano
o uso do conhecimento do dna na medicina
o uso do dna para cura de problemas mentais
compartilhamos semelhanças do dna com outras pessoas
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