How can just four nitrogenous bases--adenine, cytosine, guanine, and uracil--possibly code for all 20 amino acids? Thus, early researchers quickly determined that the smallest combination of As, Cs, ...
There are four bases: Adenine and Guanine (purines); Cytosine and Thymine (Pyrimidines). Purines have two carbon-nitrogen rings while pyrimidines have a single carbon-nitrogen ring. Thus, there are ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 77, No. 1, [Part 2: Biological Sciences] (Jan., 1980), pp. 186-190 (5 pages) In the filamentous blue-green alga ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback