30 S DNA: intermediate or artefact?
نویسندگان
چکیده
منابع مشابه
Geologically ancient DNA: fact or artefact?
Studies continue to report ancient DNA sequences and viable microbial cells that are many millions of years old. In this paper we evaluate some of the most extravagant claims of geologically ancient DNA. We conclude that although exciting, the reports suffer from inadequate experimental setup and insufficient authentication of results. Consequently, it remains doubtful whether amplifiable DNA s...
متن کاملMolecular evolution 800 000 year old mammoth DNA , modern elephant DNA or PCR artefact ? Jonas
Poulakakis and colleagues (Poulakakis et al. 2006: Biol. Lett. 2, 451–454), report the recovery of ‘authentic’ mammoth DNA from an 800 000year-old fragment of bone excavated on the island of Crete. In light of results from other ancient DNA studies that indicate how DNA survival is unlikely in samples, which are recovered from warm environments and are relatively old (e.g. more than 100 000 yea...
متن کامل800,000 year old mammoth DNA, modern elephant DNA or PCR artefact?
Poulakakis and colleagues (Poulakakis et al. 2006: Biol. Lett. 2, 451-454), report the recovery of 'authentic' mammoth DNA from an 800,000-year-old fragment of bone excavated on the island of Crete. In light of results from other ancient DNA studies that indicate how DNA survival is unlikely in samples, which are recovered from warm environments and are relatively old (e.g. more than 100,000 ye...
متن کاملMolecular evolution 800 000 year old mammoth DNA , modern elephant DNA or PCR artefact ?
Poulakakis and colleagues (Poulakakis et al. 2006: Biol. Lett. 2, 451–454), report the recovery of ‘authentic’ mammoth DNA from an 800 000year-old fragment of bone excavated on the island of Crete. In light of results from other ancient DNA studies that indicate how DNA survival is unlikely in samples, which are recovered from warm environments and are relatively old (e.g. more than 100 000 yea...
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It has been shown that lower birthweight is associated with lower IQ, but it remains unclear whether this association is causal or spurious. We examined the relationship between birthweight and IQ in two prospective longitudinal birth cohorts: a UK cohort of 1116 twin pairs (563 monozygotic [MZ] pairs), born in 1994-95, and a New Zealand cohort of 1037 singletons born in 1972-73. IQ was tested ...
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ژورنال
عنوان ژورنال: Nature
سال: 1974
ISSN: 0028-0836,1476-4687
DOI: 10.1038/247243a0