3.7 - Properties of Genetic Material (DNA versus RNA)

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Across
  1. 4. It should be .......... chemically and structurally.
  2. 5. It should provide the scope for slow changes (............) that are required for evolution.
  3. 6. In fact, the presence of .......... at the place of uracil also confers additional stability to DNA.
  4. 10. RNA performs dynamic functions of ............ and ........... has to be found from the differences between chemical structures of the two nucleic acid molecules.
  5. 11. For the ......... of genetic information, RNA is better.
  6. 12. From the foregoing discussion, it is clear that the debate between proteins versus DNA as the genetic material was unequivocally resolved from ............ experiment.
  7. 13. If one examines each requirement one by one, because of rule of base pairing and ..............., both the nucleic acids (DNA and RNA) have the ability to direct their duplications.
  8. 17. This now can easily be explained in light of the DNA that the ............. being complementary if separated by heating come together, when appropriate conditions are provided.
  9. 21. Stability as one of the properties of genetic material was very evident in Griffith’s ‘................’ itself that heat, which killed the bacteria, at least did not destroy some of the properties of genetic material.
  10. 22. Answer to some of the questions such as, why DNA is the .......... genetic material.
  11. 26. The above discussion indicate that both RNA and DNA can function as genetic material, but DNA being more stable is preferred for ........ of genetic information.
  12. 27. DNA, however, is .......... on RNA for synthesis of proteins.
Down
  1. 1. Further, 2'-OH group present at every nucleotide in RNA is a ........... group and makes RNA labile and easily degradable.
  2. 2. RNA is also now known to be ..........., hence reactive.
  3. 3. The protein synthesising ......... has evolved around RNA.
  4. 7. Consequently, viruses having RNA genome and having .......... life span mutate and evolve faster.
  5. 8. Therefore, DNA chemically is ......... reactive and structurally more ........ when compared to RNA.
  6. 9. The other molecules in the living system, such as ............ fail to fulfill first criteria itself.
  7. 14. Both DNA and RNA are able to .........
  8. 15. The genetic material should be stable enough not to change with different stages of .......... , age or with change in physiology of the organism.
  9. 16. It should be able to express itself in the form of '.......... Characters’.
  10. 18. It should be able to generate its replica is called .............
  11. 19. It became an established fact that it is ........ that acts as genetic material.
  12. 20. However, it subsequently became clear that in some viruses, ..... is the genetic material (for example, Tobacco Mosaic viruses, QB bacteriophage, etc.).
  13. 23. RNA can ............ code for the synthesis of proteins, hence can easily express the characters.
  14. 24. In fact, RNA being unstable, mutate at a ........ rate.
  15. 25. Therefore, among the two nucleic acids, the DNA is a ......... genetic material.