The thing I'm most interested in is the nervous system. How do brains grow? How do genes build complicated nervous systems?
Sydney BrennerRead
People have always asked whether evolution is constantly driving onwards and upwards. Is there always going to be improvement? The answer is no: evolution is a progression of form and function, but it is not purposeful.
Interpretation
What this quote means
Evolution is not a linear process aimed at improvement; it is a series of changes without a specific purpose.
Sydney Brenner's quote emphasizes that evolution does not follow a defined trajectory towards improvement or complexity. Instead, it is a natural progression influenced by environmental factors, where forms and functions adapt without a predetermined goal, highlighting the randomness and unpredictability inherent in the evolutionary process.
Themes
EvolutionAdaptationProgressNatureRandomness
In practice
Example use cases
In a discussion about the nature of progress in biological systems.
More from Sydney Brenner
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The art of doing science is doing the important things first.
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As was predicted at the beginning of the Human Genome Project, getting the sequence will be the easy part as only technical issues are involved. The hard part will be finding out what it means, because this poses intellectual problems of how to understand the participation of the genes in the functions of living cells.
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It is now widely realized that nearly all the 'classical' problems of molecular biology have either been solved or will be solved in the next decade. The entry of large numbers of American and other biochemists into the field will ensure that all the chemical details of replication and transcription will be elucidated. Because of this, I have long felt that the future of molecular biology lies in the extension of research to other fields of biology, notably development and the nervous system.
Sydney BrennerRead
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