Question

if a DNA sample contains 25 percent adenine (A), what percent of thymine, cytosine, and guanine must it contain? Use Chargaff's rule to construct your answer.

Answer 1

Since G = C, therefore G=25% as well as C=25%.

Step-by-step explanation:

This is known as the Chargaff's rule. If A = 25%, we can conclude that T = 25%. The remaining 50% (100-25-25) of the DNA is composed out of guanine and cytosine (G+C=50%).