Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

List the crieteria a molecule that can act as a genetic material must fulfill. Which one of the crieteria are best fulfilled by DNA or by RNA thus making one of them a better genetic material than the other ? explain.

Asked by pksunilnair 2nd October 2017, 9:31 PM
Answered by Expert
Answer:

Criteria for a molecule to act as the genetic material:

  • Replication: The molecule should be able to duplicate its genetic material by faithful replication. This property is shown by both DNA and RNA. Proteins and other molecules present in living being do not exhibit this property.
  • Stability: Stability of genetic material should exist. It should not change its structure easily with changed stages of life, age of physiology of living beings. RNA is liable and easily degradable due to presence of 2’—OH group present in each nucleotide. As RNA is catalytic, it has become reactive. Because DNA is more stable than RNA, it is said to be better genetic material. Presence of thymine instead of uracil is another reason which leads to stability of DNA.
  • Mutation: Genetic material should be able to undergo mutation and such a change should be stably inherited. Both nucleic acids DNA and RNA have the capacity to mutate. RNA mutates at a faster rate as compared with DNA. Virus with RNA genome show mutation and evolution at a faster rate and thus has shorter life span.
  • Genetic expression: RNA expresses easily the characters in the form of proteins. DNA requires RNA for formation of proteins. DNA being more stable is considered better than RNA for storage of genetic information. However, for transmission of genetic characters, RNA gives better results.
Answered by Expert 3rd October 2017, 11:26 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Free related questions

19th August 2016, 1:33 PM
15th September 2016, 10:17 AM
12th October 2016, 9:10 AM

Chat with us on WhatsApp