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Related Concept Videos

CRISPR01:59

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
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Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
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Caution required for handling genome editing technology.

Motoko Araki1, Kumie Nojima2, Tetsuya Ishii1

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|April 29, 2014
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Genome-editing technology blurs lines between natural and modified organisms. Careful research and proactive regulations are crucial to guide societal understanding and responsible application of this powerful genetic engineering tool.

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Area of Science:

  • Biotechnology
  • Genetics
  • Bioethics

Background:

  • Genome-editing technologies offer powerful genetic engineering capabilities.
  • These advancements raise concerns about distinguishing natural from modified organisms.
  • Ethical considerations and societal implications require careful examination.

Purpose of the Study:

  • To highlight the regulatory challenges posed by genome-editing technology.
  • To emphasize the need for caution in research and development.
  • To advocate for proactive discussion and establishment of appropriate regulations.

Main Methods:

  • Conceptual analysis of current genome-editing applications.
  • Review of ethical and societal impacts.
  • Discussion of regulatory frameworks.

Main Results:

  • Genome editing creates indistinct boundaries between natural and modified organisms.
  • Potential for societal misunderstanding due to unclear distinctions.
  • Urgent need for regulatory clarity and ethical guidelines.

Conclusions:

  • Researchers must exercise caution to avoid misleading the public.
  • Proactive development of regulations is essential for responsible genome-editing technology deployment.
  • Clear guidelines are necessary to navigate the ethical landscape of genetic engineering.