What is the percentage of Thymine if you have 18 % Guanine in a strand of DNA? 32
25
22
18

32%

Explanation: Remember the base pairing rules: cytosine with guanine and adenine with thymine, in equal amounts. That being said, the amount of cytosine is equal to the amount of guanine, meaning that it is 18% as well. Since 18+18=36, you know that the remaining 64% is adenine and thymine collectively. To figure out how much of each base there is, you could divide 64% between each nitrogenous base to get 32% each.

Hope this helps,

Lacia :)

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.