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CRISPR test

  • September 20, 2020
  • Posted by: OptimizeIAS Team
  • Category: DPN Topics
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Subject: Science and tech

Context:

  • The Tata CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) test, powered by CSIR-IGIB(Institute of Genomics and Integrative Biology) FELUDA, received regulatory approvals from the Drug Controller General of India (DCGI) for commercial launch.
  • The Tata CRISPR test is the world’s first diagnostic test to deploy a specially adapted Cas9 protein to successfully detect the virus causing Covid-19.
  • The Tata CRISPR test achieves accuracy levels of traditional RT-PCR tests, with quicker turnaround time, less expensive equipment, and better ease of use. Moreover, CRISPR is a futuristic technology that can also be configured for detection of multiple other pathogens in the future.

Concept:

CRISPR-cas9 gene

  • CRISPR technology is a simple yet powerful tool for editing genomes.
  • It allows researchers to easily alter DNA sequences and modify gene function. Its many potential applications include correcting genetic defects, treating and preventing the spread of diseases and improving crops. However, its promise also raises ethical concerns.
  • CRISPRs are specialized stretches of DNA.
  • The protein Cas9 is an enzyme that acts like a pair of molecular scissors, capable of cutting strands of DNA.

  • CRISPR technology was adapted from the natural defense mechanisms of bacteria and archaea. These organisms use CRISPR-derived RNA and various Cas proteins, including Cas9, to foil attacks by viruses and other foreign bodies. They do so primarily by chopping up and destroying the DNA of a foreign invader.
  • When these components are transferred into other, more complex, organisms, it allows for the manipulation of genes, or “editing.”
CRISPR test Science and tech

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