Assume DNA has the shape of a cylinder. The cross-section is a circle with a diameter of 4 nm. The vertical distance between two base pairs (nucleic acids on opposite DNA strands) is 4 Å. Calculate the volume of a gene which encodes a protein sequence of 1,000 amino acids. Compare this to Schrödinger’s estimate. Are the two results within an order of magnitude?
How do I calculate this?!
September 22nd 2010, 05:31 AM
There are a number of issues with this question that you'll need to know before you can continue.
1. How do you convert between nanometers and angstroms?
2. What is the relationship between nucleic acids and amino acids?
3. What is the volume of a cylinder, in general?
4. What is Schrödinger's estimate?
Once you've answered these questions, I think you can write out the formula giving you the answer.