dimer, oligomer, bilayer, tetramer, chromatids, subunits, thymine, molecule, epoxide, endonuclease, flavin, stilbene, adenine, histidine, fibrils, interconversion, microtubule, nucleosome, nucleotides, moieties, transmembrane, crystal lattice, chromophore, monomers, alkyl, polypeptide, uracil, trna, amide, icosahedral, disulfide, nucleons, fibronectin, cytosine, tropomyosin, centromeres, pyrimidine, morphogen, carbon atom, dynein, covalent bond, avidin, guanine, thiol, neurite, acetylation, centrioles, heterochromatin, substituents, intron, nuclei, neurites, proteins, porphyrins, quasicrystal, centrosome, hydrophobicity, adduct, macromolecule, exciton, glycoproteins, cyclization, carbene, phenylene, ribonuclease, filaments, calmodulin, alkynes, triphosphate, flagella, spectrin, alanine, vesicle, dipolar, tubulin, histone, alkenes, purkinje cell, trimer, mitochondrion, homologous chromosomes, cytochrome, serine, supramolecular, glomerulus, peptides, cytochrome c, carboxylate, vacuoles, magnetization, biomolecule, phospholipid, chirality, tubule, toroid, valine, intercalation, conformations, endosome, palmitate, codons, cytosol, helix, spirals, duplexes, coils, verticals, loops, repeats, rows, molecules, arcs, digits, segments, sequences, chains, cylinders, fio, strings, turns, diagonals, exons

double helix