Problem:
Question 1: Human chromosomes contain telomeres, and these telomeres change in length. What is a telomere, why do they exist, and what is a consequence of their shortening?
Question 2: Draw the structural difference between a pyrimidine and a purine. What differentiates the purine bases from the pyrimidine bases, and how many hydrogen bonds are made by each?
Please provide description of your answers.