Tuesday, May 14, 2013

Rocking the foundations of biology

Here it is again - top down - DNA is not the sole transmitter of inheritance - paper after paper is now showing the inheritance epigenetic information - information is the driver. >

Neo Darwinism crumbling......

A major revolution is occurring in evolutionary biology. In this video the President of the International Union of Physiological Sciences, Professor Denis Noble, explains what is happening and why it is set to change the nature of biology and of the importance of physiology to that change. The lecture was given to a general audience at a major international Congress held in Suzhou China. The implications of the change extend far beyond biology itself.

Physiology is rocking the foundations of evolutionary biology - article 

A new definition of species

I had predicted this a number of times before.  As we study genetics further we will find a better way to classify species.  Alas, here we have a new paper that

Recent experimental data from proteomics and genomics are interpreted here in ways that challenge the predominant viewpoint in biology according to which the four evolutionary processes, including mutation, recombination, natural selection and genetic drift, are sufficient to explain the origination of species. The predominant viewpoint appears incompatible with the finding that the sequenced genome of each species contains hundreds, or even thousands, of unique genes – the genes that are not shared with any other species. These unique genes and proteins, singletons, define the very character of every species. Moreover, the distribution of protein families from the sequenced genomes indicates that the complexity of genomes grows in a manner different from that of self-organizing networks: the dominance of singletons leads to the conclusion that in living organisms a most unlikely phenomenon can be the most common one. In order to provide proper rationale for these conclusions related to the singletons, the paper first treats the frequency of functional proteins among random sequences, followed by a discussion on the protein structure space, and it ends by questioning the idea that protein domains represent conserved units of evolution.