Multiple choice

A short DNA segment has 80 thymine and 90 guanine bases. The total number of nucleotides is

  1. 160

  2. 40

  3. 80

  4. 340
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In a DNA segment, the amount of thymine is equal to the amount of adenine and that of guanine is equal to cytosine. So, A = T and G = C 80 = 80 and 90 = 90 Total = 80 + 80 + 90 + 90 = 340. 

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