Bio121

It shows how the DNA must curl together to form cromosomes before mitosis can be successful in producing a fully functional cell.

 http://www.ictscience.co.uk/page08.asp

To read more

 http://www.physorg.com/news82818712.html

Neanderthal have always been thought of as having become extinct due to competition with more modern humans. But recent studies have determined that neanderthal genomes are present in many modern humans indicating that they also integrated into the rest of the human society. This confirmed the reason behind there being certain groups of people with neanderthal features that could not easily reproduce with other groups of people, this has been an unconfirmed rumor for a couple of years.