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DNA is the genetic material in most organisms while only a few organisms have RNA as genetic material.Why
 

Asked by pksunilnair 3rd October 2017, 4:24 PM
Answered by Expert
Answer:

DNA is the genetic material in most organisms while only a few organisms have RNA as their genetic material because:

  • RNA is highly reactive, labile and easily degradable. On the other hand, DNA is chemically less reactive and structurally more stable.
  • RNA functions as an enzyme and is, therefore reactive and unstable while DNA does not get destroyed by heat.
  • Uracil present in RNA is less stable as compared to thymine of DNA.
  • RNA mutates at a much faster rate while DNA mutates at a much slower rate allowing the variations and characteristics to be inherited for generations.
  • There is no repairing system in RNA. DNA has a repairing system in case of errors during replication of DNA.
Answered by Expert 3rd October 2017, 6:58 PM
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