Still Waters Posted July 21, 2016 #1 Share Posted July 21, 2016 Scientists are studying Dolly the sheep's "siblings" in order to study the health of cloned animals - and resolve a puzzle over whether they age normally. "I'm feeling the joints for any kind of heat or swelling." Veterinary surgeon Dr Sandra Corr puts Daisy the sheep through a very hands-on physical examination. "I'm looking for any signs of crepitus or lameness," she says, "Anything that might indicate the onset of disease or osteoarthritis." But Daisy is not just any sheep. She's a clone. http://www.bbc.co.uk/news/science-environment-36824899 2 Link to comment Share on other sites More sharing options...
+DieChecker Posted July 23, 2016 #2 Share Posted July 23, 2016 I think the answer should logically be Yes. If you use already damaged (old) DNA, the clone should have that same length (old) of DNA, and thus will have that much shorter a lifespan till death by old age. Link to comment Share on other sites More sharing options...
Zalmoxis Posted July 24, 2016 #3 Share Posted July 24, 2016 I remember when Dolly was in the news way back in 1996. I'm not knowledgeable on cloning all that much but if they don't know about such things in clones now they should know here soon. The average lifespan of a sheep is 10-12 years, so I would say if new generations of clones die off sooner than usual then there you go you got your answer. Link to comment Share on other sites More sharing options...
jethrofloyd Posted July 26, 2016 #4 Share Posted July 26, 2016 Dolly the Sheep’s cloned sisters aging gracefully https://www.sciencenews.org/article/dolly-sheep’s-cloned-sisters-aging-gracefully?tgt=nr Clones don’t age prematurely, new research on Dolly the Sheep’s sisters suggests. Researchers and animal welfare activists have been concerned that cloning, or somatic cell nuclear transfer, could cause health problems in cloned animals. Instead, a study of 13 cloned sheep found no signs of early aging or other health problems, researchers report July 26 in Nature Communications. 2 Link to comment Share on other sites More sharing options...
Gromdor Posted July 28, 2016 #5 Share Posted July 28, 2016 Hmm. Didn't the Raelians claim to have cloned a human girl back in 2002? I thought it a cruel thing with the whole premature aging thing. But if Dolly's sister proved that not to be the case, I can see an upsurge in human cloning in countries with lower ethical standards. Link to comment Share on other sites More sharing options...
+DieChecker Posted July 29, 2016 #6 Share Posted July 29, 2016 This could mean that the Epigenetic factors are more important then the DNA in determining when "old age" sets in... Link to comment Share on other sites More sharing options...
Duke Wellington Posted July 29, 2016 #7 Share Posted July 29, 2016 On 23/07/2016 at 9:40 AM, DieChecker said: I think the answer should logically be Yes. If you use already damaged (old) DNA, the clone should have that same length (old) of DNA, and thus will have that much shorter a lifespan till death by old age. I suspect the answer will be no because they use stem cells for cloning. However, genetic mutants occur over time so I expect a higher incidence of health problems. Link to comment Share on other sites More sharing options...
+DieChecker Posted July 29, 2016 #8 Share Posted July 29, 2016 5 hours ago, RabidMongoose said: I suspect the answer will be no because they use stem cells for cloning. However, genetic mutants occur over time so I expect a higher incidence of health problems. I thought in the case of these sheep that the cell nucleus came from an utter cell, and not a stem cell? Link to comment Share on other sites More sharing options...
Zalmoxis Posted July 29, 2016 #9 Share Posted July 29, 2016 On 7/26/2016 at 1:51 PM, jethrofloyd said: Dolly the Sheep’s cloned sisters aging gracefully https://www.sciencenews.org/article/dolly-sheep’s-cloned-sisters-aging-gracefully?tgt=nr Clones don’t age prematurely, new research on Dolly the Sheep’s sisters suggests. Researchers and animal welfare activists have been concerned that cloning, or somatic cell nuclear transfer, could cause health problems in cloned animals. Instead, a study of 13 cloned sheep found no signs of early aging or other health problems, researchers report July 26 in Nature Communications. There's your answer. Link to comment Share on other sites More sharing options...
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