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Related Concept Videos

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.The collection of fossils within sedimentary rocks give a record of common ancestry and often depicts the history of evolution.
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Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
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Related Experiment Video

Updated: Jun 22, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

Systemic aspects of biological evolution.

Werner Arber1

  • 1Biozentrum, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland. Werner.Arber@unibas.ch

Journal of Biotechnology
|June 6, 2009
PubMed
Summary
This summary is machine-generated.

Natural evolutionary strategies generate genetic variation without impacting population stability. Horizontal gene transfer makes the global gene pool accessible, influencing future evolution and risk assessments for genetically engineered organisms.

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Area of Science:

  • Evolutionary biology
  • Genetics
  • Molecular mechanisms

Background:

  • Exploration of molecular mechanisms and natural strategies for generating genetic variation.
  • Understanding low-rate genetic variation that maintains population stability.
  • Investigating systemic aspects of evolutionary interdependencies.

Purpose of the Study:

  • To explore natural strategies for genetic variation.
  • To understand the role of horizontal gene transfer in evolution.
  • To discuss the relevance for risk assessments of genetically engineered organisms.

Main Methods:

  • Review of molecular mechanisms.
  • Analysis of natural evolutionary strategies.
  • Examination of horizontal gene transfer processes.

Main Results:

  • Identification of mechanisms generating genetic variation at low rates.
  • Demonstration of horizontal gene transfer interconnecting evolutionary branches.
  • Availability of the global gene pool for evolutionary development.

Conclusions:

  • Acquired knowledge highlights systemic evolutionary interdependencies.
  • Horizontal gene transfer provides access to the biosphere's gene pool.
  • Findings are relevant for assessing risks of genetically engineered organisms.