Cloned cow controversy
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Cloned cow controversy
industry, posing an increasing threat to the unique and fearless wildlife studied by Darwin. While the island officially only had 17,000 inhabitants in 2000, many more arrived unrecorded, and some saw the national park as a nuisance and resorted to arson to clear land for their own use. The Galápagos Islands became Unesco's very first World Heritage Site in 1978, attracting yet more visitors. I...
متن کاملCloned cattle controversy
The US Food and Drug Agency could be ruling as soon as next month on draft guidelines for the sale of barnyard clones of cattle and their products: milk, meat and offspring. The regulators are likely to bow to pressure from farmers and the agro-cloning lobby to drop the voluntary moratorium on the sale of genetic material from clones. The new guidelines are widely expected to be liberal, openin...
متن کاملEpigenetic Reprogramming: How Now, Cloned Cow?
DNA methylation patterns are dynamic in cleavage-stage embryos of a number of mammalian species. A failure to properly recapitulate preimplantation DNA methylation patterns in embryos derived by nuclear transfer may contribute to the low efficiency of nuclear transfer in producing live offspring.
متن کاملTaillessness in a Cloned Cow is Not Genetically Transmitted
Somatic cell nuclear transfer (SCNT), commonly referred to as cloning, results in the generation of offspring that, except for mitochondrial DNA, are genetically identical to the nuclear donor. We previously used a genetically modified bovine cell line as the donor for SCNT and obtained a calf, named Daisy, that was born without a tail. To determine whether the missing tail was a result of the ...
متن کاملClinical Study Report on Milk Production in the Offspring of a Somatic Cell Cloned Holstein Cow
This study examined two female offspring of a somatic cell cloned Holstein cow that had reproduction problems and milk production performance issues. The two offspring heifers, which showed healthy appearances and normal reproductive characteristics, calved on two separate occasions. The mean milk yields of the heifers in the first lactation period were 9,037 kg and 7,228 kg. The relative mean ...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2010
ISSN: 0960-9822
DOI: 10.1016/j.cub.2010.08.005