4th October 2016
A person’s DNA, short for deoxyribonucleic acid, is a molecule that functions as a storehouse of genetic information. The discovery of DNA was a major breakthrough in medical science. While Watson and Crick gave the actual structure of the molecule, the credit of its discovery and identification goes to Friedrich Miescher.
18th May 2016
During fertilization of the egg by the sperm, the DNA of the sperm is injected into the egg. Both the sperm and the egg have a single set of chromosomes each, but the fertilized egg receives the DNA from the sperm and comes to possess both the sets of chromosomes. This fertilized egg cell stays as such for about half an hour and then proceeds to divide to form the multicellular embryo. Thus, all of us have spent about half an hour as a single cell.
