An alien DNA-like molecule is isolated from the frozen remains of a life form found beneath the Martian polar ice caps.In this sample,for every base designated Q,there is twice that amount of base R;for every base Z,there is twice that amount of base S.If the molecule contains 33.33 percent R,what percentage of Z would you expect to find?
A) 6 percent
B) 12 percent
C) 24 percent
D) 16.67 percent
E) 54.66 percent

Question

Quizplus · Accepted Answer

The percentage of Z is half the percentage of S. Since the percentage of R is 33.33%, the percentage of S is 66.67%. Therefore, the percentage of Z is 33.33%.

An Alien DNA-Like Molecule Is Isolated from the Frozen Remains