sat 공식 앱에서 26번의 답이 B라고 나옵니다.
그리고 purine과 pyrimidine이 결합을 하니까 당연히 purine이 purine + pyrimidine보다 공간을 더 차지하니까 안 맞는거겠죠
yes, the answer is B. Isn’t that what I said in the lecture? I haven’t seen the lecture and might have gotten “purine” and “pyrimidine” mixed up,
but from the reading the implication is that a pair of purines would be larger.