Rna World

Anaerobic sludge digester: It processes the settled sludge from the primary treatment under anaerobic conditions, producing biogas (methane, carbon dioxide) as a by-product.

Unspent slurry is used as a nutrient-rich organic fertilizer.

Leading strand: Synthesised continuously in the 5 to 3 direction. Lagging strand: Synthesised discontinuously in short fragments (Okazaki fragments) and later joined by DNA ligase.