Albert L. Lehninger quotes
The remarkable similarity of metabolic pathways and gene sequences across the phyla argues strongly that all modern organisms are derived from a common evolutionary progenitor by a series of small changes (mutations), each of which conferred a selective advantage to some organism in some ecological niche.
Albert L. Lehninger
Perhaps the most remarkable property of living cells and organisms is their ability to reproduce themselves for countless generations with nearly perfect fidelity. This continuity of inherited traits implies constancy, over millions of years, in the structure of the molecules that contain the genetic information.
Albert L. Lehninger
Water is a polar solvent. It readily dissolves most bio molecules, which are generally charged or polar com pounds (Table 2-2); compounds that dissolve easily in water are hydrophilic (Greek, "water-loving"). In contrast, nonpolar solvents such as chloroform and benzene are poor solvents for polar biomolecules but easily dis solve those that are hydrophobic-nonpolar molecules such as lipids and waxes.
Albert L. Lehninger
