Tuesday, 15 November 2011

Types of DNA Damage

. Four bases in DNA (A,T,C,G)
    -->  Most frequent is the loss of an amino group resulting for C being converted to U.
It is due to deletion that mutations in which a section of DNA is lost or deleted. Such could also change a codon to one that encodes a different amino acid and cause a change in the protein being produced.



Mismatches of normal bases during DNA replication.
      --> Loss of ammonia to gain water.
      --> Pyrimidine U is being replaced instead of T after the DNA damage. 


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