chroniX Posted November 2, 2005 Share Posted November 2, 2005 Was watching one of those Jerry Springer shows "I dont know who my baby daddy is" and a thought crossed my mind. How would they know who the father is if a woman had sex with twin brothers? Don't brothers in general have the same DNA, and if they don't, I would think it would be at least a little bit more difficult for twins that looked exactly alike? Weird question lol but I suppose DNA is not 100% alike and still contain some differences to which they could discern who the father is? Link to comment Share on other sites More sharing options...
vincent Posted November 2, 2005 Share Posted November 2, 2005 noones DNA is 100% alike, even if they are twins, it's like our fingerprints, there never the same. Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 2, 2005 Share Posted November 2, 2005 noones DNA is 100% alike, even if they are twins, it's like our fingerprints, there never the same. 586756710[/snapback] Not always. Monozygotic twins' DNA would be expected to appear identical under the said tests. Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 2, 2005 Share Posted November 2, 2005 DNA is your identity. Its basically made of a sugar phosphate backbone with organic bases called adenine, thymine, cytosine and guanine sticking out that backbone. One strain is made of two polynucleotide strings twisted around eachother in acomplementary fashion. 3 consecutive bases=something called codon which code for protiens in a way that I can't explain (TOO LONG!) in the ribosomes. Proteins are basically what we are made of, so if monozygote twins have same body fat level and same cholesterol and carb levels, they will identical, because skin/eyes/lips etc....bodily features are proteins. Hpwever, only 3% of the DNA codes for proteins, the function of the remainder is unknown. This remainder is what makes everyone different..or at least, part of this 97% is what distinguishes every human being from his fellow humans. That is why DNA is the best way to know someone's identity...... Link to comment Share on other sites More sharing options...
Pink Floyd Veteran Posted November 2, 2005 Veteran Share Posted November 2, 2005 we all know everybody has a different DNA print but is our actual test able to distinct perfect twins with 100% correlation? Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 2, 2005 Share Posted November 2, 2005 we all know everybody has a different DNA print but is our actual test able to distinct perfect twins with 100% correlation? 586757615[/snapback] They were able to map out all human genes for the genome project...why would they not be able to isolate DNA from a chromosome, cut it down and examine it? These exams have a proven 100% accurate. Science is never wrong and neither are sccientific stastics or analysis. Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 3, 2005 Share Posted November 3, 2005 Science is never wrong and neither are sccientific stastics or analysis. 586758233[/snapback] Haha not exactly.. one of the fundamental truths of science is that nothing can ever be proven, but only disproved. All of science is really little more than our "best guess". Link to comment Share on other sites More sharing options...
_kane81 Posted November 3, 2005 Share Posted November 3, 2005 No, current DNA testing techniques would not be able to workout who the "real" father is if the 2 males are identical twins. DNA testing is only so accurate, when they do a test to see if you are the father, they tell you what the chances are that you are the father. Link to comment Share on other sites More sharing options...
y0sh Posted November 3, 2005 Share Posted November 3, 2005 Haha not exactly.. one of the fundamental truths of science is that nothing can ever be proven, but only disproved. All of science is really little more than our "best guess". 586760212[/snapback] Okay, you go ahead and believe that then. As already mentioned, monozygotic "Identical Twins" (as opposed to Fraternal) have the exact same DNA structure. In theory, they are the same person - clones, etc. Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 3, 2005 Share Posted November 3, 2005 Okay, you go ahead and believe that then.As already mentioned, monozygotic "Identical Twins" (as opposed to Fraternal) have the exact same DNA structure. In theory, they are the same person - clones, etc. 586761135[/snapback] Yeah... and I'm the one who said that.... What are you trying to say? Link to comment Share on other sites More sharing options...
y0sh Posted November 3, 2005 Share Posted November 3, 2005 Yeah... and I'm the one who said that.... What are you trying to say? 586761190[/snapback] If I were to explain the sarcastic intent, the effect would be lost. So, I'll change it around instead: If you believe that then I'm happy for you, even though I don't agree. Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 3, 2005 Share Posted November 3, 2005 If I were to explain the sarcastic intent, the effect would be lost. So, I'll change it around instead: If you believe that then I'm happy for you, even though I don't agree. 586761205[/snapback] What is there to agree with? Nothing I've said is even mildly controversial and very fundamental to everything we know to be true of science. Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 3, 2005 Share Posted November 3, 2005 Are you people trying to tell me that identical twins are exactly similar in every single way???? That's genetically impossible....mendel would be spinning in his grave if he read that! Even Monozygotic twins don't necesseraly (sp) ave the same alleles for a certain genotype. Plus, as i said before, during the division of the zygote into two, there must be some sort of distortion in the DNA of both twin during the development from zygote to embryo to fetus...97% of the DNA function is UNKNOWN. At least 0.01% has to differ...please read my forst reply here Link to comment Share on other sites More sharing options...
Glowstick Posted November 4, 2005 Share Posted November 4, 2005 Hey Captain Snorkel, considering you're acting so much as genetics specialist, you don't seem to have much of a clue about the feasibility of full accuracy gene tests. DNA matching uses a very small amount of very prominent and specified genes to derive a likelyhood. The standard for parenthood matching seems to be 18 genes, so your 0.01% will be going under everybody's radar. --preemptive edit: Genes or genomes, what the hell ever. Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 4, 2005 Share Posted November 4, 2005 Hey Captain Snorkel, considering you're acting so much as genetics specialist, you don't seem to have much of a clue about the feasibility of full accuracy gene tests. DNA matching uses a very small amount of very prominent and specified genes to derive a likelyhood. The standard for parenthood matching seems to be 18 genes, so your 0.01% will be going under everybody's radar.--preemptive edit: Genes or genomes, what the hell ever. 586767462[/snapback] whoa whoa whoa easy there...Its not like I insulted you....I quote from this article: "The likelihood of two people having the same DNA is one in 5.3 trillion" BTW, this is the science section, so behave yourself and be a bit more polite in your replies...there's no need for this agression. And BTW, I'm not a "genetics specialist", I major in Applied physics. Link to comment Share on other sites More sharing options...
Fred Derf Veteran Posted November 4, 2005 Veteran Share Posted November 4, 2005 Identical twins have the same DNA (but different fingerprints): http://www.wonderquest.com/twins-dna.htm Link to comment Share on other sites More sharing options...
Glowstick Posted November 5, 2005 Share Posted November 5, 2005 I quote from this article:"The likelihood of two people having the same DNA is one in 5.3 trillion" 586768117[/snapback] And people in this thread keep telling you that current DNA matching technology is unable to differ between twins. Unless the mother likes to take a dive in the cooling bath of a nuclear reactor, or whatever else alters genetic structures. Or if you're Donald Trump and are paying a couple of ten millions for years long indepth genetic analysis. I don't really know why this is so hard to understand for you. Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 7, 2005 Share Posted November 7, 2005 Whooooo Saaaaaaa!! :hug: What's with all the hostility in this thread?! Be nice people. P.S.: Jerry was the baby daddy... :D Link to comment Share on other sites More sharing options...
j.r.l. Posted November 8, 2005 Share Posted November 8, 2005 There are some chimairas with double DNA, so you can't really determine who murdered who by DNA or whatever but that would be pretty obvious... humans, pigs and monkeys have around 99% the same DNA, I guess brothers would be quite close to 100% eh? Link to comment Share on other sites More sharing options...
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