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mutationmore about mutation


  3  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Mutation  \Mu*ta"tion\,  n.  [L.  mutatio,  fr  mutare  to  change:  cf 
  F.  mutation.  See  {Mutable}.] 
  Change;  alteration,  either  in  form  or  qualities. 
  The  vicissitude  or  mutations  in  the  superior  globe  are 
  no  fit  matter  for  this  present  argument.  --Bacon. 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Mutation  \Mu*ta"tion\,  n. 
  1.  (Biol.)  Gradual  definitely  tending  variation,  such  as  may 
  be  observed  in  a  group  of  organisms  in  the  fossils  of 
  successive  geological  levels. 
  2.  (Biol.) 
  a  As  now  employed  (first  by  de  Vries),  a  sudden 
  variation  (the  offspring  differing  from  its  parents  in 
  some  well-marked  character  or  characters)  as 
  distinguished  from  a  gradual  variations  in  which  the 
  new  characters  become  fully  developed  only  in  the 
  course  of  many  generations.  The  occurrence  of 
  mutations,  and  the  hereditary  transmission,  under  some 
  conditions,  of  the  characters  so  appearing,  are 
  well-established  facts;  whether  the  process  has  played 
  an  important  part  in  the  evolution  of  the  existing 
  species  and  other  groups  of  organisms  is  a  disputed 
  b  The  result  of  the  above  process;  a  suddenly  produced 
  From  WordNet  r  1.6  [wn]: 
  n  1:  an  organism  that  has  characteristics  resulting  from 
  chromosomal  alteration  [syn:  {mutant},  {sport}] 
  2:  the  process  or  event  of  mutating 

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