Changes

[[Image:Mitochondria.jpg]]

So, my mitochondrial DNA is the same as my mum’s. Her mitochondrial DNA is the same as her mum’s etc. So my mitochondrial DNA is the same as my great-great-great-great-great-great grandmother’s and so on; my mitochondrial DNA is also therefore the same as my sister’s or brother’s or mum’s sister etc.

[[Image:Mitochondrial_eve_migration.jpg]]

==Y chromosome Adam==

Looking at the amount of variation of Y chromosomes in different regions of the world, it has been determined that this man must have come from Africa – he is “Y chromosome Adam”

M168 – the first humans leave Africa

M98 – the second migration away from Africa about 45,000 years ago, where humans spread out to the rest of the world, including Western Europe in the M173 migration of about 30,000 years ago

==Questions that this raises?==

The current scientific theory is that of a “bottle-neck” catastrophe such as a huge volcanic eruption that caused the earth’s temperature to drop so that very few humans survived – perhaps only a few women who had children (so that a new mitochondrial Eve did not appear), and 1 man who had sons (so that a new Y chromosome Adam appeared)

==Stories from Genesis==