Q11 of 71 Page 40

Name any three viruses which have RNA as the genetic material.

The three viruses which have RNA as the genetic material are:

1. Tobacco Mosaic Virus


2. Human- Immuno Deficiency Virus


3. Influenza Virus


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In a nucleus, the number of ribonucleoside triphosphates is 10 times the number of deoxy x10 ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication. Suggest a mechanism.

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Name a few enzymes involved in DNA replication other than DNA polymerase and ligase. Name the key functions for each of them.

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Define transformation in Griffith's experiment. Discuss how it helps in the identification of DNA as the genetic material.

 2

Who revealed biochemical nature of the transforming principle? How was it done?