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प्रश्न
Recall the experiments done by Frederick Griffith, Avery, MacLeod and McCarty, where DNA was speculated to be the genetic material. If RNA, instead of DNA was the genetic material, would the heat killed strain of Pneumococcus have transformed the R-strain into virulent strain? Explain.
उत्तर
RNA is less stable than DNA and hence, DNA replaced RNA as the genetic material In the living world. If RNA was the genetic material in Griffith's experiment, it would have been destroyed by heat. Thus, the heat-killed strain of Pneumococcus could not have transformed the R-strain Into virulent strain.
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संबंधित प्रश्न
Define Frameshift mutations
Explain how the biochemical characterisation (nature) of 'Transforming Principle' was determined, which was not defined from Griffth's experiments.
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Which one among the following was the first genetic material?
Which of the following criteria must a molecule fulfill to act as genetic material?
- It should not be able to generate its replica.
- It should chemically and structurally be stable.
- It should not allow slow mutation.
- It should be able to express itself in the form of Mendelian Characters.
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- Describe the entire procedure for this experiment.
- Write the conclusion of this experiment.
- What would have been the result of the experiment if both strains of bacteria were first heat-killed, mixed and then injected in the mice?
