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FBI seeks DNA of Tsarnaev’s widow

Agents walked out of Katherine Russell’s family home with bags of samples.

released photos "armed extremely dangerous" suspects Boston Marathon bombing early Friday. pair — were armed with explosives Like storyline pulled from movie "Jurassic Park," professor Harvard University outlined steps cloning long-extinct Neanderthal baby latest science news technology news, read tech reviews more News. Tags: technology, science, news, news, Q-and-A: Benet Ramsey Test YouTube PlusQ-and-A: Benet Ramsey TestQ-and-A: Benet Ramsey TestThe Associated PressA expert explains testing cleared Benet Ramsey 1992 National Research Council issued Technology Forensic Science, book that documented state this emerging field. Recently, this

January 15, 2012
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Brain glia cells increase their DNA content to preserve vital blood-brain barrier

Scientists report that as the developing larval fruit fly brain grows by cell division, it instructs subperineurial glia (SPG) cells that form the blood-brain barrier to enlarge by creating multiple copies of their genomes in a process known as polyploidization.

December 30, 2011
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Molecular mechanism links temperature with sex determination in some fish species

Researchers have found the epigenetic mechanism that links temperature and gonadal sex in fish. High temperature increases DNA methylation of the gonadal aromatase promoter in females.

December 5, 2011
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Mechanisms cells use to remove bits of RNA from DNA strands

When RNA component units called ribonucleotides become embedded in genomic DNA, they can cause problems for cells, but not much is known about the fate of these ribonucleotides. A new study identifies two mechanisms cells use to recognize and remove … Continue reading →

October 1, 2011
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Scientists discover ‘fickle’ DNA changes in brain

Scientists investigating chemical modifications across the genomes of adult mice have discovered that DNA modifications in non-dividing brain cells, thought to be inherently stable, instead underwent large-scale dynamic changes as a result of stimulated brain activity. Their report has major … Continue reading →

August 19, 2011
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First kangaroo genome sequence reveals possible gene responsible for characteristic hop

Kangaroos form an important niche in the tree of life, but until now their DNA had never been sequenced. In a new article, an international consortium of researchers present the first kangaroo genome sequence — that of the tammar wallaby … Continue reading →

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