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प्रश्न
Give one significant contribution of the given scientists
H. Boyer
उत्तर
H. Boyer : Discovered restriction enzymes
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संबंधित प्रश्न
Answer the following questions based on Hershey and Chases's experiments:
(a) Name the kind of virus they worked with and why?
(b) Why did they use two types of culture media to grow viruses in ? Explain.
(c) What was the need for using a blender and later a centrifuge during their experiments?
(d) State the conclusion drawn by them after the experiments.
Describe Avery, McLeod and McCarty’s experiment. State its significance.
State the 'Central dogma' as proposed by Francis Crick. Are there any exceptions to it? Support your answer with a reason and an example.
Hershey and Chase experiment with bacteriophage showed that ____________.
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?
The transforming principle of Pneumococcus as found out by Avery, MacLeod, and McCarty was ______.
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 ______.
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.
