Evolution: Difference between revisions
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''"Nothing in biology makes sense except in the light of evolution."'' - [http://en.wikipedia.org/wiki/Nothing_in_Biology_Makes_Sense_Except_in_the_Light_of_Evolution Theodosius Dobzhansky].<br> | ''"Nothing in biology makes sense except in the light of evolution."'' - [http://en.wikipedia.org/wiki/Nothing_in_Biology_Makes_Sense_Except_in_the_Light_of_Evolution Theodosius Dobzhansky].<br> | ||
The word evolution has has been defined as "the gradual developing of something" | The word evolution has has been defined as "the gradual developing of something"<ref>http://oxforddictionaries.com/definition/evolution</ref>. | ||
Some argue that evolution is strictly the change over time, in [[Genes|genes]] and [[Proteins|proteins]], that occur in a population which allow an organism to be advantageous in it's surrounding environment. Organisms change continuously over time due to random mutations; however, the aforementioned definition incorporates that these changes - the evolution of a certain organism, must be beneficial in terms of it's environment.<br> | Some argue that evolution is strictly the change over time, in [[Genes|genes]] and [[Proteins|proteins]], that occur in a population which allow an organism to be advantageous in it's surrounding environment. Organisms change continuously over time due to random mutations; however, the aforementioned definition incorporates that these changes - the evolution of a certain organism, must be beneficial in terms of it's environment.<br> | ||
Revision as of 11:59, 6 December 2018
"Nothing in biology makes sense except in the light of evolution." - Theodosius Dobzhansky.
The word evolution has has been defined as "the gradual developing of something"[1].
Some argue that evolution is strictly the change over time, in genes and proteins, that occur in a population which allow an organism to be advantageous in it's surrounding environment. Organisms change continuously over time due to random mutations; however, the aforementioned definition incorporates that these changes - the evolution of a certain organism, must be beneficial in terms of it's environment.
Evolutionary changes in metabolism, development and behaviour created three domains[2][3][4]:
Causes of evolution are mutation, migration, genetic drift and natural selection.
References
- ↑ http://oxforddictionaries.com/definition/evolution
- ↑ Hartl, D.L. and Ruvolo, M. (2011) 'Genetics: Analysis of Genes and Genomes.' 8th edn. Burlington: Jones and Bartlett Learning.
- ↑ University of California Museum of Paleontology. (). Mechanisms of Change. Available: http://www.evolution.berkeley.edu.
- ↑ Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter. (2008) Molecular Biology of the Cell, 5th edition, New York: Garland Science