Answer the following questions based on Meselon and Stahl's experiment of E. coli :
(a) Write the name of the chemical substance used as the only source of nitrogen in the experiment.
(b) Why did they allow the synthesis of the light and the heavy DNA molecules in the organism ?
(c ) How did they distinguish the heavy DNA molecules from the light DNA molecules? Explain.
(d) Write the conclusion the scientists arrived at, at the end of the experiment.

Answer the following questions based on Meselson and Stahl s experiment: (a) Write the name of the chemical substance used as a source of nitrogen in the experiment by them. (b) Why did the scientists synthesise the light and the heavy DNA molecules In the organism used in the experiment ? (c) How did the scientists make it possible to distinguish the heavy DNA molecule from the light DNA molecule ? Explain. ((1) Write the conclusion the scientists arrived at after completing the experiment.

Answer the following questions based on Hershey and Chase's experiments. Why did they use two types of culture media to grow viruses in it? Explain.

Answer the following questions based on Hershey and Chase.s experiments: Why did they use two types of culture media to grow viruses in? Explain.

Explain the Meselson and Stahl's experiment for semi conservative replication of DNA.

In the synthesis of which of the following the DNA molecule is not directly involved

In meselson and Stahl's experiment, heavy isotope ""^(15)N was used in the from of

In meselson and Stahl's experiment, heavy isotope ""^(15)N was used in the from of

In the synthesis of which of the following the DNA molecule is not directly involved :

Describe Meselson and Stahl's experiment that was carried in 1958 on E. Coli. Write the conclusion they arrived at after the experiment.