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Related Concept Videos

Evolutionary Psychology01:20

Evolutionary Psychology

Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
What is Evolutionary History?02:35

What is Evolutionary History?

Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
Evolution of New Traits in Microbes01:24

Evolution of New Traits in Microbes

Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...
The Fossil Record02:56

The Fossil Record

The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
Criticisms of the Evolutionary Perspective01:23

Criticisms of the Evolutionary Perspective

In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.

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Related Experiment Video

Updated: May 14, 2026

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
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Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

A 21(st) Century View of Evolution.

J A Shapiro

    Journal of Biological Physics
    |January 25, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Biological evolution may involve Natural Genetic Engineering, challenging the random walk theory. Genomes are organized systems with non-coding DNA formatting, enabling complex genome system architectures and novel adaptations.

    Keywords:
    DNA rearrangementscellular computationgenome system architecturemobile genetic elementsnatural genetic engineeringrepetitive DNAsignal transduction

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    Area of Science:

    • Molecular Biology
    • Evolutionary Biology
    • Genomics

    Background:

    • The prevailing theory of biological evolution suggests adaptations occur through random processes.
    • Physicists question the existence of biological 'universals' due to this perceived randomness.

    Purpose of the Study:

    • To explore the concept of Natural Genetic Engineering as a mechanism for biological evolution.
    • To investigate the role of genome system architecture in evolutionary processes.

    Main Methods:

    • Analysis of molecular genetics data, including DNA sequence organization and protein structure.
    • Examination of cellular processes involved in genetic change.
    • Review of whole-genome sequencing data to identify evolutionary events.

    Main Results:

    • Genomes are hierarchically organized systems composed of DNA modules, formatted by non-coding repetitive DNA elements.
    • These formatting elements act as codons for multiple genetic codes, supporting functions like transcription, replication, and genome distribution.
    • Rearrangement, duplication, and reuse of genomic systems are fundamental evolutionary events driven by natural genetic engineering activities.
    • Natural genetic engineering is sensitive to biological inputs and operates non-randomly, explaining the emergence of novel genome architectures.

    Conclusions:

    • Evolution may not be solely a random walk; Natural Genetic Engineering offers a framework for understanding directed evolutionary change.
    • The hierarchical and computational nature of genome system architecture provides a basis for complex adaptations.
    • Cells possess inherent mechanisms for DNA reorganization, supporting the concept of Natural Genetic Engineering in evolution.