It’s like a jungle sometimes it makes me wonder how I keep from going under
The human genome is estimated to contain about 23 000 genes. Where do these genes come from? Well, from your parents. And their parents. And so on. But, surely, if we go back far enough, there haven’t been 23 000 genes all along? However life originated, the first DNA carrying organisms probably had significantly fewer genes. So, where did all these new genes come from? How are genes born?
Well, there are two main ways:
• Re-organization of existing genes. […]
• All new. In other words, not based on previously present genes. This is what the new study investigates.
related { The genetics of stupidity }
photo { Paolo Ventura }
