Tribes of Man

Masai Tribe:

Asian Descendants:

European:

Hispanic:

Fulbe Tribe:

Native American:

Mitochondrial Eve

I believe that we have descended from a common maternal mitochondrial DNA line. Her name is Mitochondrial Eve. I am not a genius but I feel that it is possible that mitochondrial DNA could have mutated enough to cause slight changes over time.

Life.

Two important things to survive:
1. Replication
2. Nourishment

Importance of Amphioxus

Amphioxus is a key organism for understanding evolution of the vertebrate genome. Scientists have discovered that each amphioxus gene correlates to either two or three vertebrate counterparts. Since amphioxus are in Phylum Cephalochordata and vertebrates, Phylum Chordata, I believe scientists are trying to link a connection between the two phlya. It seems that vertebrates could have evolved from cephalochordates by two successive rounds of whole-genome replication.




Source:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1461312/