Evolution: Difference between revisions

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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.<br>  
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.<br>  


Evolutionary changes in metabolism, development and behaviour created three main kingdoms<ref>Hartl, D.L. and Ruvolo, M. (2011) 'Genetics: Analysis of Genes and Genomes.' 8th edn. Burlington: Jones &amp;amp;amp;amp; Bartlett Learning.</ref>:  
Evolutionary changes in metabolism, development and behaviour created three main kingdoms<ref>Hartl, D.L. and Ruvolo, M. (2011) 'Genetics: Analysis of Genes and Genomes.' 8th edn. Burlington: Jones &amp;amp;amp;amp;amp; Bartlett Learning.</ref>:  


*Bacteria  
*Bacteria  
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*Eukarya<br>
*Eukarya<br>


<br>


== Bacteria<br>  ==


Bacteria are prokaryotes, this means that it has no nucleus.
=== <br>  ===


<br>
== References ==
 
== Archaea  ==
 
== Eukarya  ==
 
== LUCA ==
 
LUCA is the last universal common ancestor.<ref>Hartl, D.L. and Ruvolo, M. (2011) 'Genetics: Analysis of Genes and Genomes.' 8th edn. Burlington: Jones &amp;amp;amp;amp;amp; Bartlett Learning.</ref>&nbsp;'''''<u><br></u>'''''
 
=== <br> ===
 
== References ==


<references />
<references />

Revision as of 16:46, 2 December 2011

"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 main kingdoms[2]:

  • Bacteria
  • Archaea 
  • Eukarya



References

  1. http://oxforddictionaries.com/definition/evolution
  2. Hartl, D.L. and Ruvolo, M. (2011) 'Genetics: Analysis of Genes and Genomes.' 8th edn. Burlington: Jones &amp;amp;amp;amp; Bartlett Learning.