States and UTs asked to step up Genome Sequencing

1 min read
States and UTs asked to step up Genome Sequencing Blog Image


The Central government has recently asked States and Union Territories to increase genome sequencing of positive samples amid a rise in COVID cases in China, Japan, the United States, Korea and Brazil.

About Genome:

  • A genome is an organism’s complete set of DNA, including all of its genes.
  • Each genome contains all of the information needed to build and maintain that organism.
  • In humans, a copy of the entire genome—more than 3 billion DNA base pairs—is contained in all cells that have a nucleus.

Genome Sequencing:

  • Genome sequencing is figuring out the order of DNA nucleotides, or bases, in a genome—the order of As, Cs, Gs, and Ts that make up an organism's DNA.
  • The human genome is made up of over 3 billion of these genetic letters.
  • In more simple terms, Sequencing a gene is like reading a book one letter at a time to look for any spelling mistakes.
  • Whole genome sequencing (WGS) is the equivalent of running spellcheck on every volume in a library.


  • Tackling Human Disease
  • Uncovering the secrets of our past
  • Learning about the science behind ancient medicine
  • Conserving our wildlife.


Q1) What is DNA?

DNA is a long molecule containing instructions for making all the proteins in our bodies. It is composed of two strands that wrap around each other forming a double helix shape. Each strand of DNA is formed of four basic building blocks or ‘bases’: adenine (A), cytosine (C), guanine (G) and thymine (T). The order, or sequence, of these bases determines our unique genetic code.

Source: Centre asks States & UTs to step-up genome sequencing as Covid cases surge globally