Question

does the adenine and guanine has a phosphate group attached to them
GPT 3.5
No, adenine and guanine do not have a phosphate group attached to them. Adenine and guanine are nitrogenous bases found in DNA and RNA molecules. The phosphate group is actually attached to the sugar molecule (deoxyribose in DNA and ribose in RNA), forming the backbone of the nucleic acid strand.