Yeast has the highest percentage of adenine at 31.3 percent.
2. Calculate: If a species has 35 percent adenine in its DNA, what is the percentage of the other three bases?
If a species has 35 percent adenine in its DNA, then the percentage of the other three bases sum up to 65 percent. A species would have 30 percent thymine, 15 percent guanine and 15 percent cytosine in its DNA.
3. Draw Conclusions: What did the fact that A and T, and G and C, occurred in equal amounts suggest about the relationship among these bases?
The fact that A and T, and G and C, resulted in equal amounts suggest that A is paired with T in a DNA sequence, while G pairs with C in a DNA sequence.