If DNA of a particular species was analyzed and it was found that it contains 27 percent A, what would be the percentage of C?

27 percent

30 percent

23 percent

54 percent

DNA of that particular species contains 23 % of C

Explanation:

Adenosine (A) is complimentary with Thymine (T), that means that there is 27% of A + 27 % of T = 54%

To calculate the percentage of Cytosine (C) we need to know that C and Guanine (G) are also complementary. That means that the remaining 46% is half C and half G.

Therefore, the percentage of C is 23%.