categories or semantides are distinguished: primary, secondary and tertiary. Primary Semantides are genes, which consist of DNA. Secondary semantides are chains...
12 KB (1,329 words) - 16:41, 3 December 2023
refine the molecular clock. In 1963, he and Pauling invented the term "semantides" for biological sequences—DNA, RNA, and polypeptides—that have evolutionary...
8 KB (1,016 words) - 22:22, 3 July 2024