Thursday, 14 October 2010
The human genome
What is the hype about the human genome? Well, in 1990 , several scientists came together and decided to sequence and decipher the human genome. A genome is the complete DNA (genetic material made of 4 nucleic acids mainly A, T, G & C) in an organism. The human genome is made of 23 chromosomal pairs - 22 autosomal pairs and a pair of sex chromosomes - a lady would have a pair of X chromosomes while a man would have an X & a Y chromosome.
The human genome project was highly debated and versions of the same are yet being debated in terms of its ethics, legalities & social issues.
Human beings are 99.99% similar to each other, and the 0.01% variation codes for all the differences between nationalities, personalities, colour, disease susceptability or resistance, etc. This 0.01% difference is in certain positions of the genome and is being widely studied to understand heritability of certain characters like height and disease risks.
(OK...I think I pause this post here, waiting to here your comments...)