Question

The DNA is given a strand that contains 35% cytosine nucleotide. What percentage of its nucleotides would be adenine?

A) 35%

B) 70%

C) 15%

D) 30%

Answer 1

The percentage of cytosine and guanine nucleotides are equal - 35%. From here, the percentage of adenine and thymine nucleotides is 100% - 35% - 35% = 30%. Finally, the percentage of adenine is 30% / 2 = 15% (Answer C).