Download Terapias geneticas - Hicksville Public Schools
Document related concepts
Transcript
Aim: What are some other applications of genetically engineered organisms? Objetivo: ¿Cuáles son algunas otras aplicaciones de organismos modificados genéticamente? What is a Genetically Modified Organism (GMO)? Is any organism that has acquired one or more genes by artificial means. A GMO is said to be transgenic. This means that the GMO contains DNA from different species. Organismos Modificados Geneticamente • Es cualquier organismo que ha adquirido uno o más genes por medios artificiales. • Son transgénicos. Contiene ADN de especies diferentes. What are the benefits to Beneficios de plantas y genetically modify animales geneticamente plants and animals? modificados: • To make temperature resistant plants • GM plants can produce natural pesticide. • To increase vitamin content. • Decrease allergens • To make food last longer. • Getting food to the market faster. • Plantas con resistencia a la temperatura. • Plantas que producen pesticidas naturales. • Aumentar el contenido de vitaminas. • Disminuir los alergenos. • Hacer que la comida dure mas. • Hacer que la comida llegue al mercado con mas rapidez. Some examples of GM Plants: Scientists have also genetically modified sweet corn so it contains genes from a bacteria that allow the corn to produce a natural pesticide. How do scientists genetically modify plants? Example of a GM Animal: These two salmon are the same age, but the GM salmon grew at about twice the rate. **It is more difficult to genetically modify animals than plants. What are the risks of GMOs? 1.Increase in food toxicity. 2.The creation of new allergens. 3.Reduced nutritional content. 4.Create antibiotic resistance. Riesgos: • Aumento de toxicidad de alimentos. • La creación de nuevos alérgenos. • Menor contenido nutricional. • Crear resistencia a los antibióticos. What is Gene Therapy? We rely on our genes functioning correctly, so when a gene is missing or not functioning, a disease can result. Gene therapy is a way of putting the correct gene back into our cells. Terapia de Genes: Las proteinas se basan en los genes. Cuando un gen esta danado, la persona puede enfermarse. La terapia de genes es una manera de integrar un gen correcto en nuestras celulas. How could it be done? Vectorcarries the new gene to the cells. Vector- carga el gen nuevo a las celulas Will this individual produce offspring with the normal gene? No, because the sex cells were not altered. Challenges of Gene Therapy: 1)The vector itself could cause the individual to become sick. 2)The gene has to be delivered to many & the right kinds of cells. 3)The gene needs to be inserted in the right part of the cell’s genome. Desafios de la terapia de genes: 1)El vector puede enfermar a la persona. 2) El gen debe ser llevado a muchas celulas especificas. 3) El gen debe ser insertado en el lugar correcto del gen. 4) El gen, una vez presente, 4) The gene, once present, necesita ser expresado. needs to be expressed.