News tagged with mammalian dna
New nucleotide could revolutionize epigenetics
Apr 16, 2009 |
4.8 / 5 (6) |
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Anyone who studied a little genetics in high school has heard of adenine, thymine, guanine and cytosine - the A,T,G and C that make up the DNA code. But those are not the whole story. The rise of epigenetics in the past decade ...
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Mobile DNA elements in woolly mammoth genome give new clues to mammalian evolution
Jun 08, 2009 |
4.9 / 5 (7) |
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The woolly mammoth died out several thousand years ago, but the genetic material they left behind is yielding new clues about the evolution of mammals. In a study published online in Genome Research, scientists have analyz ...
DNA editing tool flips its target
Biology /
Sep 03, 2008 |
4.4 / 5 (8) |
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Imagine having to copy an entire book by hand without missing a comma. Our cells face a similar task every time they divide. They must duplicate both their DNA and a subtle pattern of punctuation-like modifications on the ...
Platypus link to ovarian cancer
Jun 26, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Researchers from the Royal Adelaide Hospital and University of Adelaide believe our oldest mammalian relative may help us to better understand ovarian cancer.
Where does the gene activity of youth go? New findings may hold the key
Biology /
Nov 26, 2008 |
4.8 / 5 (19) |
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New evidence may explain why it is that we lose not only our youthful looks, but also our youthful pattern of gene activity with age. A report in the November 26th issue of the journal Cell, a Cell Press publication, reveal ...
After dinosaurs, mammals rise but their genomes get smaller
Jul 27, 2009 |
4.5 / 5 (2) |
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(PhysOrg.com) -- Evidence buried in the chromosomes of animals and plants strongly suggests only one group -- mammals -- have seen their genomes shrink after the dinosaurs' extinction. What's more, that trend continues today, ...
Evolution of an imprinted domain in mammals
Biology /
Jun 03, 2008 |
4.2 / 5 (5) |
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The normal human genome contains 46 chromosomes: 23 from the mother and 23 from the father. Thus, you have two copies of every gene (excluding some irregularity in the pair of sex chromosomes). In general, which parent contributes ...
Discovery may result in new test to determine predisposition to cancer
Mar 25, 2009 |
5 / 5 (1) |
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Researchers at UCLA's Jonsson Comprehensive Cancer Center have developed an assay that may be used to help identify new genes that can predict a predisposition to cancer.
Scientists discover stage at which an embryonic cell is fated to become a stem cell
Jan 10, 2007 |
4.5 / 5 (13) |
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Cambridge scientists have discovered the stage at which some of the cells of a fertilised mammalian egg are fated to develop into stem cells and why this occurs. The findings of the study, which overturn the long-held belief ...
Biologists discover link between CGG repeats in DNA and neurological disorders
Biology /
Jan 11, 2009 |
5 / 5 (2) |
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Researchers have long known that some repetitive DNA sequences can make human chromosomes "fragile," i.e. appearing constricted or even broken during cell divisions. Scientists at Tufts University have found that one such ...
Loss of egg yolk genes in mammals and the origin of lactation and placentation
Biology /
Mar 18, 2008 |
4.1 / 5 (8) |
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If you are reading this, you did not start your life by hatching from an egg. This is one of the many traits that you share with our mammalian relatives. A new paper in this week’s PLoS Biology explores the ge ...
List of search results for mammalian dna
