a) Write the conclusin drawn by Griffith at the end of his experiment with Streptococcus pneumoniae.
b) How did O.Avery, C.MacLeod and M. McCarty prove that DNA was the genetic material? Explain.

How did Hershey and Chase prove that DNA is the genetic material?

How did Griffiths and Avery show experimentally that DNA is the hereditary material?

How did Hershey and Chase proved that DNA is the hereditary material? Explain their experiment with suitable diagram.

How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?

Define transformation in Griffith's experiment. Discuss how it helps in the identification of DNA as the genetic material.

(a) Explain with the help of Griffith's experiment how the seach for genetic material was conducted and what was the conclusion drawn ? (b) How did Macleod,Mc Carty and Avery establish the Bio-Chemical nature of the so called "genetic material" identified by Griffith in his experiment.

(a) Explain the experiment performed by Griffith on Streptococcus pneumoniae. What did he conclude from this experiment? (b) Name the three scientists who followed up Griffith's experiments. (c) What did they conclude and how?

Recell the experiments done by frederick Griffith, Avery, MacLeod and McCarty, where DNA was speculated to be the genatic material. If RNA , instead of DNA was the genetic meterial, would the heat killed strain of pneumoccus have transformed the R-strain into virulent strani? Explain.