“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

Principles of Biochemistry, Ch. 1 : The Foundations of Biochemistry

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "The remarkable similarity of metabolic pathways and gene sequences across the phyla argues strongly that all modern org…" by Albert L. Lehninger?

Albert L. Lehninger 19

American biochemist 1917–1986

Related quotes

“Natural selection eliminates and maybe maintains, but it doesn't create… Neo-Darwinists say that new species emerge when mutations occur and modify an organism. I was taught over and over again that the accumulation of random mutations led to evolutionary change [which] led to new species. I believed it until I looked for evidence.”

Lynn Margulis (1938–2011) American evolutionary biologist

“But this (a listing of illustrations of how the genome can change other than by mutations) doesn’t constitute a crisis—it’s a very interesting finding that shows that variation in a genome can arise by processes other than mutation of an organism’s own DNA. The disposition of that variation still must occur via either natural selection (it can be good or bad) or genetic drift (no effect on fitness). This hasn’t really changed the theory of evolution one iota, though it’s changed our view of where organisms can acquire new genes.”

Jerry Coyne (1949) American biologist

" Another philosopher proclaims a nonexistent “crisis” in evolutionary biology http://whyevolutionistrue.wordpress.com/2012/09/07/another-philosopher-proclaims-a-nonexistent-crisis-in-evolutionary-biology/" September 7, 2012

“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 (1917–1986) American biochemist

Principles of Biochemistry, Ch. 1 : The Foundations of Biochemistry

“Organizational forms — specific configurations of goals, boundaries, and activities — are the elements selected by environmental criteria, and change may occur either through new forms eliminating old ones or through the modification of existing forms. Environmental niches are distinct in combination of resources and other constraints that are sufficient to support organizational form. Organizational forms, then, are organized activity systems oriented toward exploiting the resources within a niche.
Selection pressures may favour or eliminate entire groups of organizations, such as industries, and the changing population distribution of organizations in a society reflects the operation of such selection pressures.”

Howard E. Aldrich (1943) American sociologist

Source: Organizations and Environments, 1979, p. 28

“Sociobiology is not just any statement that biology, genetics, and evolutionary theory have something to do with human behavior. Sociobiology is a specific theory about the nature of genetic and evolutionary input into human behavior. It rests upon the view that natural selection is a virtually omnipotent architect, constructing organisms part by part as best solutions to problems of life in local environments. It fragments organisms into “traits,” explains their existence as a set of best solutions, and argues that each trait is a product of natural selection operating “for” the form or behavior in question. Applied to humans, it must view specific behaviors (not just general potentials) as adaptations built by natural selection and rooted in genetic determinants, for natural selection is a theory of genetic change. Thus, we are presented with unproved and unprovable speculations about the adaptive and genetic basis of specific human behaviors: why some (or all) people are aggressive, xenophobic, religious, acquisitive, or homosexual.”

Stephen Jay Gould book Hen's Teeth and Horse's Toes

"Our Natural Place", p. 243
Hen's Teeth and Horse's Toes (1983)

“The fallacy of genetic determinism is to suppose that the genes "make" the organism. It is a basic principle of developmental biology that organisms undergo a continuous development from conception to death, a development that is the unique consequence of the interaction of the genes in their cells, the temporal sequence of environments through which the organisms pass, and random cellular processes that determine the life, death, and transformation of cells. As a result, even the fingerprints of identical twins are not identical. Their temperaments, mental processes, abilities, life choices, disease histories, and death certainly differ despite the determined efforts of many parents to enforce as great a similarity as possible.”

Richard C. Lewontin (1929) American evolutionary biologist

" The Confusion over Cloning http://www.nybooks.com/articles/archives/1997/oct/23/the-confusion-over-cloning/," The New York Review of Books, 23 October 1997.
Review of Cloning Human Beings: Report and Recommendations of the National Bioethics Advisory Commission by the National Bioethics Advisory Commission.

“In my opinion, neither organisms nor organizations evolve slowly and surely into something better, but drift until some small change occurs which has immediate and overwhelming significance. The special role of the human being is not to wait for these favorable accidents but deliberately to introduce the small change that will have great significance.”

Edwin H. Land (1909–1991) American scientist and inventor

Generation of Greatness (1957)
Context: In my opinion, neither organisms nor organizations evolve slowly and surely into something better, but drift until some small change occurs which has immediate and overwhelming significance. The special role of the human being is not to wait for these favorable accidents but deliberately to introduce the small change that will have great significance.
To treat young men like men; to use modern recording techniques to capture the moment of exciting teaching; to gather ninety great men out of our one-hundred and seventy million — these, in retrospect, will seem like small changes indeed if they succeed in building a generation of greatness.

“This paper introduces a concept of organizational ecology. This refers to the organizational field created by a number of organizations, whose interrelations compose a system at the level of the field as a whole. The overall field becomes the object of inquiry, not the single organization as related to its organization-set. The emergence of organizational ecology from earlier organization theory is traced and illustrated from empirical studies. Its relevance to the task of institution-building, in a world in which the environment has become exceedingly complex and more interdependent, is argued.”

Eric Trist (1909–1993) British scientist

Eric Trist, "A concept of organizational ecology." Australian journal of management 2.2 (1977): 161-175. p. 161; abstract

Stephen Jay Gould book Leonardo's Mountain of Clams and the Diet of Worms

"Brotherhood by Inversion", p. 330-31
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“Evolution does depend on mutations, and these do appear to be random. But each cumulative mutation may become significant factors for that organism once pitted against the dynamics of the environment in which they are introduced. Thus natural selection isn’t random; it’s deterministic. Many creationists will even admit this. And as some computer models have already shown, natural selection can actually even exceed the skills of human designers. In fact, natural selection can be so deterministic that it often leads to innovations which some perceive as evidence of intelligent design, and which even rationalists describe as though modified for intended benefit. Whether it is deliberately guided or not, there is definitely a system of design. But there doesn’t actually have to be any apparent intent or intelligence involved.”

Aron Ra (1962) Aron Ra is an atheist activist and the host of the Ra-Men Podcast

"7th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=g8Q2Db17v5U, Youtube (February 27, 2008)
Youtube, Foundational Falsehoods of Creationism

Help us to complete the source, original and additional information

Albert L. Lehninger 19

Related quotes

Related topics