Thursday, October 4, 2012
Nature's Way of Protecting the Code
1. Telomere: Telomeres are useless information made up of repetitive nucleotides at the end of the chromosomes that protects DNA code from being deleting or lost through process of DNA replication.
2. Nucleus: Nucleus contains and protects DNA surrounding it by nuclear envelope that only allows certain mRNA to pass through and prevent contact of DNA from outer environment.
3. DNA repair: A cell sometimes could identify the damage on the DNA strand and repair the DNA cuased by radiation or various other chemicals.
4. Intron: Introns are junk gene which doesn't carry the genetic information for producing proteins. Introns are inserted alternatively between exons(actual genetic information). This could lower the chance of DAN mutation and alteration through various factors.
5. Structure: The structure of DNA is double stranded so that it is less reactive with oxygen and other atoms. It is also bounded to proteins to form chromosomes when replicating, which increases stability of the DNA through structure.
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