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प्रश्न
Hershey and Chase experiment with bacteriophage showed that ____________.
पर्याय
Protein gets into the bacterial cells
DNA is the genetic material
DNA contains radioactive sulphur
Viruses undergo transformation
उत्तर
Hershey and Chase experiment with bacteriophage showed that DNA is the genetic material.
संबंधित प्रश्न
Give any two features of Genetic Code.
Mention one significant difference between Phenotype and Genotype
Describe the experiment performed by Griffith. What conclusions did he infer from his observations?
State the 'Central dogma' as proposed by Francis Crick. Are there any exceptions to it? Support your answer with a reason and an example.
Explain how the biochemical characterisation (nature) of 'Transforming Principle' was determined, which was not defined from Griffth's experiments.
How has the use of Agrobacterium as vectors helped in controlling Meloidegyne incognitia infestation in tobacco plants? Explain in correct sequence.
(a) Why did Hershey and Chase use radioactive 32P and 35S in their experiments? Explain.
(b) Following the experiments conducted by them, write what conclusion did they arrive at and how ?
Why did Hershey and Chase use radioactively labelled phosphorous and sulphur only? Would they have got the same result if they use radiolabelled carbon and nitrogen?
In Streptococcus pneumoniae ______.
Which one is a hereditary disease?
The transforming principle of Pneumococcus as found out by Avery, MacLeod, and McCarty was ______.
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.
Which of the following methods of reproduction in bacteria involves participation of a virus?
Transformation was discovered by ______
Define transformation in Griffith's experiment. Discuss how it helps in the identification of DNA as the genetic material.
Griffith conducted a series of experiments on mice with two different strains of the bacterium Diplococcus pneumoniae.
- 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?
