Skip to content
← All previous year questions
HCS (Haryana)Prelims2021General Studies

Question

Doctors recommended Real Time PCR test for COVID 19 patients. This diagnostic test detects

Options

  1. A Complete COVID virus
  2. B Protein of virus
  3. C RNA of virus
  4. D Specific antigen of virus
Show Answer

Correct Answer

C RNA of virus

Model Answer

  • A reverse transcription-polymerase chain reaction (RT-PCR) test is done to detect the presence of specific genetic material in any pathogen, including a virus.
  • In recent times, this process has been used to detect COVID-19, Ebola virus and Zika virus.
  • Specimen for the test is collected from the throat and nose.
  • The genetic material of coronavirus (SARS-CoV-2) or COVID-19 virus comprises only RNA.
  • It means that the coronavirus relies on infiltrating healthy cells to multiply and survive.
  • Once inside the cell, the virus uses its RNA to take control of and re-programme the cells and turn them into virus-making factories.
  • Hence, option C is correct.

Additional Information

  • RNA is generally a one-strand molecule that copies transcribe and transmits parts of the genetic code to proteins so that they can synthesize and carry out functions that keep organisms alive and developing.
  • Different variations of RNA are responsible for copying, transcribing and transmitting.
A five-step diagram of RT-PCR testing: swab collection, specimen, RNA extraction, RT-qPCR amplification and the results curve.
A five-step diagram of RT-PCR testing: swab collection, specimen, RNA extraction, RT-qPCR amplification and the results curve.
Chat with us on WhatsApp
2021 — Doctors recommended Real Time PCR test for COVID 19… | Dr. Amit IAS Academy