Nov 15, 2009

DNA : Don't Know Anything??

It is still a mystery about the macro-molecule that controls our existence.DNA,the double helical structure that is responsible for our identity is still a hidden secret to us.Research works have progressed in this field,but only a mere has been revealed for our understanding.
DNA in eukaryotes which codes for protein expressions of our body,can be broadly split into two discrete regions;the exons which constitute the coding segments which code for various protein molecules and RNAs,the introns that constitute the non-translated DNA do not code for the amino acid sequence of the polypeptide product.
These non-coding portion of the DNA pose several questions about its function in eukaryotes. Eukaryotic genes are very complex;therefore are very difficult to deal with.So,research countering hurdles to solve the hidden mystery.
Many arguments though propose the introns playing a pivotal role in genomic organization,but the proofs are insufficient to seal the proposed fact.Introns occupy as much as 28.5% of the genome;if their role is understood a great progress can be achieved for human development.