Demosthenes had five triremes and their complements of soldiers as a garrison, and was reinforced by 40 hoplites from a Messenian ship that happened to stop at Pylos.
Individual codons code for specific amino acids. A gene is a sequence of nucleotides along a DNA strand-with 'start' and 'stop' codons and other regulatory elements-that specifies a sequence of amino acids that are linked together to form a protein.
Carbon chains branched. Prokaryotes are single-celled organisms that lack membrane-bound organelles and have a single chromosome containing all their DNA. They can be photoautotrophs, chemoautotrophs, photoheterotrophs, or chemoheterotrophs.