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Scientists Create Healthy Mice With Same-Sex Parents (bbc.com)

Researchers at the Chinese Academy of Sciences were able to make baby mice with two moms and no dad. "The aim of the Chinese researchers was to work out which rules of reproduction they needed to break to make baby mice from same-sex parents," reports the BBC. "That in turn helps understand why the rules are so important." From the report: It was easier with double mums. The researchers took an egg from one mouse and a special type of cell -- a haploid embryonic stem cell -- from another. Both contained only half the required genetic instructions or DNA, but just bringing them together wasn't enough. The researchers had to use a technology called gene editing to delete three sets of genetic instructions to make them compatible (more on that later). The double-dad approach was slightly more complicated. It took a sperm, a male haploid embryonic stem cell, an egg that had all of its own genetic information removed and the deletion of seven genes to make it all work.

The reason we need to have sex is because our DNA -- our genetic code -- behaves differently depending on whether it comes from mum or dad, the study in Cell Stem Cell suggests. And without a female copy and a male copy our whole development gets thrown out of whack. It's called genomic imprinting with parts of the DNA in sperm and parts of the DNA in eggs getting different "stamps" that alter how they work. The bits of DNA carrying these stamps were the ones the researchers had to delete in order to make the baby mice viable.

4 of 183 comments (clear)

  1. Re:Of Mice and Men by PopeRatzo · · Score: 2, Insightful

    You want to promote same sex marriages.
    You are free as in freedom.
    You want to prove that having same sex parents isn't any worse than having parents with different sex.
    You are free as in beer.

    If you even glance at the article or summary for a moment, even just the first sentence, you will learn that Chinese researchers in this experiment were trying to do neither of these things.

    Sometimes, a Slashdot article is like a Rorschach test. Peoples' reactions are much more informative (and sometimes unintentionally so) than anything in the article.

    --
    You are welcome on my lawn.
  2. Re:Of Mice and Men by nukenerd · · Score: 3, Insightful

    You want to promote same sex marriages.
    .......

    If you even glance at the article or summary for a moment ... you will learn that Chinese researchers in this experiment were trying to do neither of these things

    Whatever the Chinese researches intended, or did not intend, has nothing to do with it. Others will make of it and use it however they will. In any case I took the GP's "you" as a general one, not just to the researchers, as part of a question addressed to the world at large.

    Peoples' reactions are much more informative .... than anything in the article.

    That applies to your reaction too (and my reaction to your reaction, to save you saying it).

  3. Re:Speaking as a man... by Oswald+McWeany · · Score: 4, Insightful

    I have never come across anyone claiming the strength distribution curves don't have significant overlap. When people claim men are stronger than women, aren't they just referring to stats like mean, median, maximum, etc.?

    What do you call significant overlap?

    I'd be very surprised if you took a group of same-age individuals- say one hundred 25yo men and 100 25yo women- if more than 10 women were stronger than the weakest 10 men- if we're looking at pure strength. If we're looking at stamina based "strength" challenges that number would probably be higher. There are some things, like ultra-long distance running, where women would actually do better than men... ... but if we're looking at who can lift the most, or who can push harder with their legs... the overlap is surely lower than 10%. I'd be open minded to be convinced otherwise if anyone has any knowledge of studies saying to the contrary.

    --
    "That's the way to do it" - Punch
  4. Political implications by Applehu+Akbar · · Score: 2, Insightful

    When the Democrats keep inventing new genders, it will now be possible to test them on mice first.