Monday, March 28, 2011

Mitochondrial Eve

MITOCHONDRIAL EVE
Mitochondrial Eve is the woman that all humans descended from today. Something that everyone forgets or does not know about Mitochondrial Eve is that even though everyone was descended from her line, she was not the only woman living at that time. Nuclear DNA shows that the human population never dropped below ten thousand.


There have been challenges to the Mitochondrial Eve theory. A recent observation has shown that the mitochondria of sperm are frequently passed to the offspring. It could have been that Eve never existed because of paternal existence and when it occurred. 
See Below Video for extra information on mitochondrial eve:
Who Was Mitochondrial Eve?

Image-MitochondrialEve.jpg

Humans are categorized with a race or ethnicity. 
They can be categorized using color names: 

Black (Sub-Saharan Africa), Red (Native Americans), Yellow (East Asians) and White (Europeans).
istockphoto_4129113-kids-of-different-races.jpg
There are so many races today and these races are depicted through hair color, skin color, eyes, and other things. But what depicts a race and what does each race look like? Looking at this picture we see a white male with light skin, light hair and light eyes. Does this depict the normal white male? We look at the guy on the end right. He has darker skin, eyes and hair. Does this depict the normal black male? What constitutes a race these days? Overtime through reproduction with other races, we have created several mixed races. The idea of mitochondrial eve confuses me when I see this picture of different races and how they are split.