If a species has 35 % adenine in it’s DNA what is the percent of the other three bases

35% thymine, 15% guanine and 15% cytosine

Explanation:

35% thymine, 15% guanine, and, 15% cytosine because the exact same amount of thymine would pair up with adenine, thus thymine has to be 35%. Thymine and adenine take up 70% of the DNA the rest has to equal 30%. Guanine and cytosine make up the rest, which is 30%, thus we have to split it evenly because they pair up with each other. Therefore, guanine and cytosine equal 15%.

the answer would be..

b. sucking