From the sandy creek in the Cajon Pass, into Lone Pine Canyon, up and along the Blue Ridge to the summit of Mt. Baden-Powell, then edging along to Islip Saddle, the trail within proximatey to Wrightwood provides views of the extended metropolitan areas of Southern California and the Mojave Desert.
Guanine, along with adenine and cytosine, is present in both DNA and RNA, whereas thymine is usually seen only in DNA, and uracil only in RNA. Guanine has two tautomeric forms, the major keto form (see figures) and rare enol form. It binds to cytosine through three hydrogen bonds.
The nucleotides found in a DNA are Adenine, Guanine, Thiamine and Cytosine and in an RNA it is Adenine, Guanine, Uracil and Cytosine. Adenine always pairs with Thiamine and Cytosine pairs with Guanine in a DNA. RNA is generally single stranded but in cases where it is double stranded the same rules apply but here Adenine pairs with Uracil. The A-T and A-U bond is double bonded whereas the G-C bond is single stranded..