Albert L. Lehninger - Common Quotes

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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

Despite these common properties, and the fundamental unity of life they reveal, it is difficult to make generalizations about living organisms.

Albert L. Lehninger

All living organisms fall into one of three large groups (domains) [Bacteria, Archeara, Eukarya] that define three branches of evolution from a common progenitor.

Albert L. Lehninger

The current understanding that all organisms share a common evolutionary origin is based in part on this observed universality of chemical intermediates and transformations, often termed "biochemical unity."

Albert L. Lehninger