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प्रश्न
Hershey and Chase experiment with bacteriophage showed that ____________.
विकल्प
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.
Define Frameshift mutations
Describe the experiment performed by Griffith. What conclusions did he infer from his observations?
How did Hershey and Chase prove that DNA is the genetic material?
Describe Avery, McLeod and McCarty’s experiment. State its significance.
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 ?
Nucleotide arrangement in DNA can be seen by ______.
The scientists involved in discovery of DNA as chemical basis of heredity were ______.
Which one is a hereditary disease?
The process of transformation is not affected by which of the following enzymes?
- DNase
- RNase
- Peptidase
- Lipase
Which one among the following was the first genetic material?
Identify the compound chemical structure is shown below. State any three of its physical properties.
Which of the following methods of reproduction in bacteria involves participation of a virus?
Name the scientist who proved experimentally that DNA is the genetic material ______.
Who revealed biochemical nature of the transforming principle? How was it done?
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.
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?
