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Thursday, November 22, 2007

Good News Josh: You’re Wrong

posted by on November 22 at 7:32 AM

Josh writes:

But the articles don’t even mention how the scientists actually made those controversial embryos. They made them by cloning.

The process for creating embryos to create stem cells worked like this: Cells were taken from a patient and injected into the emptied out nucleus of a donated egg cell. That egg cell then grew into a blastocyst-stage embryo that produced genetically identical stem cells to the original patient. Those stem cells could be used for therapeutic purposes.

That embryo could have also been used to make a clone. Exciting!

Wrong. 100% wrong.

Cloning human being by the process described above—hollowing out and egg, sticking in an adult cell nuclei—proved so impossibly difficult that the South Koreans resorted to fraud after failing hundreds of times at the task.

Every single human embryonic stem cell in existence today was created from a leftover embryo from an in vitro fertilization clinic. How were these embryos made? An egg and sperm met, fell in love and fused to form a zygote. In a dish or in a fallopian tube it’s the same basic idea—no cloning involved.

But, Josh, here’s the silver lining. This new technique, that can reprogram adult cells to become like embyronic stem cells, that is adored by conservative Christians everywhere,could be used for cloning.

In fact, I’d say it’s likely to work if you wanted to create a chimeric human being and has a decent chance of working if you wanted to create man-animal hybrid. So, look up Josh. Your dream has actually just became a bit closer.

And I haven’t even talked about using the four magic genes to make a cancer bomb. What an excellent supervillain weapon!

RSS icon Comments

1

so maybe i can finally sleep with myself!

Posted by konstantConsumer | November 22, 2007 8:53 AM
2

Actually, they're still trying to make that method of cloning work. They can do it with monkeys.

Posted by UC | November 22, 2007 9:44 AM
3

UC is right. Josh is more right than Jonathan is.

It's in the November issues of Science and Cell, something like November 14.

If you read the footnotes, you find why Josh is more correct. Under methods.

Posted by Will in Seattle | November 23, 2007 12:06 AM

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