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	<title>Comments on: Sperm and eggs created in dish produce mouse pups</title>
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	<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups</link>
	<description>Accelerating Intelligence</description>
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		<title>By: Dr.Pratt</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-39309</link>
		<dc:creator>Dr.Pratt</dc:creator>
		<pubDate>Sun, 07 Oct 2012 23:12:20 +0000</pubDate>
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		<description>Amazing! The next step is a womb outside of the mamillian carrier. All living things could eventualy grow inside of these carfully contructed biological &quot;ark wombs.&quot;</description>
		<content:encoded><![CDATA[<p>Amazing! The next step is a womb outside of the mamillian carrier. All living things could eventualy grow inside of these carfully contructed biological &#8220;ark wombs.&#8221;</p>
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		<title>By: Vin</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-39113</link>
		<dc:creator>Vin</dc:creator>
		<pubDate>Sun, 07 Oct 2012 06:22:56 +0000</pubDate>
		<guid isPermaLink="false">http://www.kurzweilai.net/?p=166246#comment-39113</guid>
		<description>... But if YY embryo&#039;s result, they can always be aborted.  I think even with IVF they usually select from a sample of zygotes.</description>
		<content:encoded><![CDATA[<p>&#8230; But if YY embryo&#8217;s result, they can always be aborted.  I think even with IVF they usually select from a sample of zygotes.</p>
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		<title>By: Vin</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-39111</link>
		<dc:creator>Vin</dc:creator>
		<pubDate>Sun, 07 Oct 2012 06:12:08 +0000</pubDate>
		<guid isPermaLink="false">http://www.kurzweilai.net/?p=166246#comment-39111</guid>
		<description>Yah, good point. Y chromosome is always dodgy.  Might be best to eliminate the Y chromosome altogether and just have girls: it would probably eliminate crime in one go, lol.  But rather than males giving birth, I was thinking of external gestation in an artificial womb furnished with blood supply for placenta and chemical messengers, perhaps linked to an actual pregnant female or computer model of same for synchronisation and feedback. like the old sci-fi trope, the gestation vat.  But I appreciate I&#039;m veering off into &#039;Brave New World&#039; territory and remote future.</description>
		<content:encoded><![CDATA[<p>Yah, good point. Y chromosome is always dodgy.  Might be best to eliminate the Y chromosome altogether and just have girls: it would probably eliminate crime in one go, lol.  But rather than males giving birth, I was thinking of external gestation in an artificial womb furnished with blood supply for placenta and chemical messengers, perhaps linked to an actual pregnant female or computer model of same for synchronisation and feedback. like the old sci-fi trope, the gestation vat.  But I appreciate I&#8217;m veering off into &#8216;Brave New World&#8217; territory and remote future.</p>
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		<title>By: Dwight</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-39075</link>
		<dc:creator>Dwight</dc:creator>
		<pubDate>Sat, 06 Oct 2012 23:43:14 +0000</pubDate>
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		<description>Tricky thing with that for men would be that the couple would have a 25% chance of having a child with a YY chromosome, which, at least according to a web search which led me to an &quot;Ask a Scientist&quot; page, the lack of an X chromosome would be fatal to the child, pretty well guaranteeing that it not be carried to term.  Certainly male birth with an artificial womb would be complicated already, even before adding the YY conundrum. Screening the eggs for the Y chromosome may work, though I&#039;m not a biologist and I&#039;m uncertain of our ability to observe the chromosomes without damaging the egg.

Also, a surrogate mother would likely be more practical.</description>
		<content:encoded><![CDATA[<p>Tricky thing with that for men would be that the couple would have a 25% chance of having a child with a YY chromosome, which, at least according to a web search which led me to an &#8220;Ask a Scientist&#8221; page, the lack of an X chromosome would be fatal to the child, pretty well guaranteeing that it not be carried to term.  Certainly male birth with an artificial womb would be complicated already, even before adding the YY conundrum. Screening the eggs for the Y chromosome may work, though I&#8217;m not a biologist and I&#8217;m uncertain of our ability to observe the chromosomes without damaging the egg.</p>
<p>Also, a surrogate mother would likely be more practical.</p>
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		<title>By: Vin</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-38659</link>
		<dc:creator>Vin</dc:creator>
		<pubDate>Fri, 05 Oct 2012 19:49:32 +0000</pubDate>
		<guid isPermaLink="false">http://www.kurzweilai.net/?p=166246#comment-38659</guid>
		<description>lol, I&#039;m sure many women would say their backs aren&#039;t designed to carry the weight properly either. And I think they even dislodge joints during birth. Always fun to speculate, but from what you said it sounds like artificial wombs are conceivable, so to speak and maybe not so far-fetched.  I suppose chemical messaging could be synchronised with a single mother linked to any number of artificial wombs.</description>
		<content:encoded><![CDATA[<p>lol, I&#8217;m sure many women would say their backs aren&#8217;t designed to carry the weight properly either. And I think they even dislodge joints during birth. Always fun to speculate, but from what you said it sounds like artificial wombs are conceivable, so to speak and maybe not so far-fetched.  I suppose chemical messaging could be synchronised with a single mother linked to any number of artificial wombs.</p>
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		<title>By: Bri</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-38655</link>
		<dc:creator>Bri</dc:creator>
		<pubDate>Fri, 05 Oct 2012 19:22:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.kurzweilai.net/?p=166246#comment-38655</guid>
		<description>If I&#039;m not mistaken, in theory men can carry children too. The plecenta graphs itself onto any large enough blood supply. Men&#039;s backs aren&#039;t designed to carry the weight properly and there are other areas that womens bodies are evolved for child rearing. In terms of egg or sperm development, they just need to find the chemical messages that they are using from the surrogates. Could always print a womb with an ink jet printer!</description>
		<content:encoded><![CDATA[<p>If I&#8217;m not mistaken, in theory men can carry children too. The plecenta graphs itself onto any large enough blood supply. Men&#8217;s backs aren&#8217;t designed to carry the weight properly and there are other areas that womens bodies are evolved for child rearing. In terms of egg or sperm development, they just need to find the chemical messages that they are using from the surrogates. Could always print a womb with an ink jet printer!</p>
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		<title>By: Vin</title>
		<link>http://www.kurzweilai.net/sperm-and-eggs-created-in-dish-produce-mouse-pups/comment-page-1#comment-38638</link>
		<dc:creator>Vin</dc:creator>
		<pubDate>Fri, 05 Oct 2012 18:20:57 +0000</pubDate>
		<guid isPermaLink="false">http://www.kurzweilai.net/?p=166246#comment-38638</guid>
		<description>Interesting. This could allow gay couples to have babies using genetic material derived from each parent if I&#039;m not mistaken?  Just need a surrogate womb?</description>
		<content:encoded><![CDATA[<p>Interesting. This could allow gay couples to have babies using genetic material derived from each parent if I&#8217;m not mistaken?  Just need a surrogate womb?</p>
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