A nucleic acid is a long molecule made up of smaller molecules called nucleotides. Nucleic acids were discovered in 1868, when twenty-four-year-old Swiss physician Friedrich Miescher isolated a ...

"The importance of deoxyribonucleic acid (DNA) within living cells is undisputed" (Watson & Crick, 1953). This opening sentence of James Watson and Francis Crick's second major paper, published ...

In fact, it appeared to be a giant chemical molecule. Leading molecular biologists of the next generation characterized Stanley's finding as the effective beginning of molecular biology. Subsequently, ...