Double ring nitrogen bases always bond with what?

A: DNA polymerase.

B: Single ring nitrogen bases

C: Double-ring nitrogen bases.

D: Guanine.

Question

Double ring nitrogen bases always bond with what?

A: DNA polymerase.

B: Single ring nitrogen bases

C: Double-ring nitrogen bases.

D: Guanine.

KingPizza · Answer

I know for sure it isn't D though

SmokeyBrown · Answer

It's been a while since I've learned about Organic Chemistry, so I did a quick Bing search about double-ring nitrogen bases.
It seems that the double-ring bases, Adenine and Guanine, will bind to the single-ring bases, Thymine and Cytosine, respectively. So, I'm pretty sure B is the answer you're looking for
You might want to verify it with another source before you trust my word on it; I'm just telling you what Bing told me :)