Search for Genetic Material - Introduction of Search for Genetic Material

Nucleotide arrangement in DNA can be seen by ______.

During infection of E. coli cells by bacteriophage T₂, ______.

How has the use of Agrobacterium as vectors helped in controlling Meloidegyne incognitia infestation in tobacco plants? Explain in correct sequence.

Identify the compound chemical structure is shown below. State any three of its physical properties.

The scientists involved in discovery of DNA as chemical basis of heredity were ______.

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.

Who revealed biochemical nature of the transforming principle? How was it done?

Describe the Hershey and Chase experiment. Write the conclusion drawn by the scientists after their experiment.