Discuss the significance of heavy isotope of nitrogen in the Meselson and Stahl's experiement.

Explain Meselson and Stahl's experiment.

Give the biological significance of Nitrogen.

You are repeating the Hershey-Chase experiment and are provided with two isotopes: 32P and 15N (in place of 35S in the original experiment). How do you expect your results to be different?

In an experiment, DNA is treated with a compound which tends to place itself amongst the stacks of nitrogenous base pairs. As a result of this, the distance between two consecutive base increases. from 0.34nm to 0.44 nm. Calculate the length of DNA double helix (which has 2 × 10 9 bp) in the presence of saturation amount of this compound

A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.

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

Describe Meselson and Stahl's Experiment to prove that replication of DNA is semi-conservative.

How are organisms like Pseudomonas and Thiobacilus of great significance in nitrogen cycle?