What experimental questions would you ask if you could purify your own DNA and why?

Draw the structure of dna nucleotide with adenine as nitrogenous base

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?