Wednesday, May 20, 2020

Gene Editing and Engineering Technology - 921 Words

INTRODUCTION: Gene editing and engineering technology has the potential to cure many diseases that plague humans. Until now, there have been two main methods used to perform gene editing. The first is a method that uses Zinc Finger Nucleases (ZFNs) to target genes. This method allowed to make changes at the desired places, but it required, a new protein to be specifically engineered for each target gene. This was difficult and very time consuming. The other method uses transcription activator-like effector nucleases (TALENs). In this method, its much more easier to tailor them to the targeted genes. But, TALENS are large proteins, and it is difficult to deliver them into the cells. CRISPR stands for clustered regularly interspaced short palindromic repeats. These are short DNA sequences that are found in bacteria. This is used to make RNA that along with a protein called Cas9, to make cuts in the invading viral DNA. This mechanism is used by bacteria to protect and defend against invading viruses. In 2012, it was discovered by Jinek et al [1], that a piece of RNA along with the Cas9 nuclease could be used to make cuts at any place in the DNA sequence. The greatest advantage of this method is that it is very easy to engineer pieces of RNA corresponding to the DNA sequence to be cut. Also, the Cas9 nuclease is easy to produce. This method provides a cheap, quick and easy way to make genetic changes in cells, and accelerate genetic research in the laboratory. HUMANShow MoreRelatedThe Genome Editing And Crispr Technology1458 Words   |  6 Pages2015 Genome Editing and CRISPR Technology The research surround genome editing is fairly recent but has been of great scientific discovery by correcting faulty genetic diseases. With the contemporary research regarding genome editing or genetically altering the genes of an embryo, the types of sources that embodied this research was minimal yet paramount. The amount of information gathered from online libraries and texts attained from the library the technology used for genome editing CRISPR/Cas9Read MoreBenefits Of Genetic Engineering1115 Words   |  5 Pageswill be talking about genetic engineering. What is genetic engineering? Genetic engineering is the process of directly manipulating an organism’s genes or DNA in order to change its characteristics. Over the years, genetic engineering and modification has been trialled on many different things, (CHANGE SLIDE) including food such as creating seedless grapes, CHANGE SLIDE and animals such as dolly the sheep, the first cloned animal in the world. However, genetic engineering, especially on humans has beenRead MoreA New Science Of Genetic Engineering Essay1130 Words   |  5 Pagespublic would react to his life work. The growing potential of gene editing is sweeping the US, filled with both overwhelming hope as well as fear. This is a bridge which must be crossed to achieve trust within the biomedical community. To ensure the people this can bring great change without the unethical byproducts which could come with gene editing. Much of the American public is divided with the relatively new science of genetic engineering due to concerning ethical issues, but would benefit in manyRead MoreDelivery Of The Cas Components1306 Words   |  6 Pagesmethods of transfection such as microinjection, gene gun, electroporation, sonoporation, and using viruses such as adenoviruses and lentiviruses. In cultured mammalian cells, researchers have used electroporation , nucleofection, and Lipofectamine mediated transfection methods to deliver vectors expressing the gene for gRNAs and Cas9 endonuclease. In cultured human and mouse cells, Lentiviral vectors have also been used as a mode of delivery of genes. 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CRISPR Cas-9, is an RNA- guided targeted genome editing tool, it allows scientists to do knockout, addition or deletions of genes and because of this it is used to target disease-causing genes in specific genes. It first came about in in 1987 a Japanese team of scientists at Osaka University saw a strange pattern of DNA sequences in a gene belonging to E. coli. They saw that the gene had five short repeating segments of DNA separated by short non-repeating spacerRead MoreA Research On The New Scientific System1497 Words   |  6 Pagesthis could be the future of the world; therefore, CRISPR can alter mutant genes in the fetus to make the perfect healthy baby, changing the health of society. Many people may think that is is an inhumane way to conceive a baby, because an individual should not alter the way a baby is born and should let the babies be bor n naturally. 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