There's a constant debate over nature or nurture - they're inseparable.

There's a constant debate over nature or nurture - they're inseparable.

As a scientist, I clearly see the potential for harnessing the power of nature.

As a scientist, I clearly see the potential for harnessing the power of nature.

As a scientist, I clearly see the potential for harnessing the power of nature.

The mouse genome is an invaluable tool to interpret the human genome.

The mouse genome is an invaluable tool to interpret the human genome.

The mouse genome is an invaluable tool to interpret the human genome.

In the past, geneticists have looked at so-called disease genes, but a lot of people have changes in their genes and don't get these diseases. There have to be other parts of physiology and genetics that compensate.

In the past, geneticists have looked at so-called disease genes, but a lot of people have changes in their genes and don't get these diseases. There have to be other parts of physiology and genetics that compensate.

In the past, geneticists have looked at so-called disease genes, but a lot of people have changes in their genes and don't get these diseases. There have to be other parts of physiology and genetics that compensate.

I am not sure our brains and our psychologies are ready for immortality.

I am not sure our brains and our psychologies are ready for immortality.

I am not sure our brains and our psychologies are ready for immortality.

I don't see any absolute biological limit on human age.

I don't see any absolute biological limit on human age.

I don't see any absolute biological limit on human age.

Genes can't possibly explain all of what makes us what we are.

Genes can't possibly explain all of what makes us what we are.

Genes can't possibly explain all of what makes us what we are.

Race has no genetic or scientific basis.

Race has no genetic or scientific basis.

Race has no genetic or scientific basis.

Mitochondrial DNA is in higher concentration, lasts longer, and can be extracted from bones.