Abstract
1. 1. The results of a survey of the nucleotide composition of pentose nucleic acids (PNA) have been presented. The material analyzed included whole tissues and various subcellular fractions derived from beef, rat and frog liver and kidney, from sea urchin eggs and embryos, and from several microorganisms. 2. 2. It appears characteristics of all preparations studied that the bases with 6-amino groups (adenine, cytosine) and those with 6-keto groups (guanine, uracil) occur in approximately equal number. 3. 3. This regularity was found only when the total PNA of the sample was analyzed. 4. 4. Some of the structural implications of the findings are discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
