ScienceDaily: Biotechnology News |
- Study of bees links gene regulatory networks in the brain to behavior
- Complete map of mouse genetic variation
- Structure of a molecular copy machine: How mitochondrial genes are transcribed
- Many roads lead to Asia: Modern humans may have populated Asia in more than one migration wave
- Increased knowledge of the malaria parasite can provide better medicines
| Study of bees links gene regulatory networks in the brain to behavior Posted: 26 Sep 2011 12:17 PM PDT A new study reveals that distinct networks of genes in the honey bee brain contribute to specific behaviors, such as foraging or aggression, researchers report.  |
| Complete map of mouse genetic variation Posted: 26 Sep 2011 11:46 AM PDT The laboratory mouse has been widely used for research on a variety of diseases and genetic studies to understand which genes are involved in various illnesses. However, actual variations in past sequences of genes were unknown. Researchers have now sequenced a nearly complete map of mouse genetic variation. Cataloging the full set of variants is a first step in identifying the actual variants affecting disease.  |
| Structure of a molecular copy machine: How mitochondrial genes are transcribed Posted: 26 Sep 2011 08:14 AM PDT Mitochondria are compartments within cells and have their own DNA. The key protein required for the expression of the genetic information in this DNA is the mitochondrial RNA polymerase enzyme. Its three-dimensional structure has now been determined in atomic detail.  |
| Many roads lead to Asia: Modern humans may have populated Asia in more than one migration wave Posted: 26 Sep 2011 07:28 AM PDT The discovery by Russian archaeologists of the remains of an extinct prehistoric human during the excavation of Denisova Cave in Southern Siberia in 2008 was nothing short of a scientific sensation. The sequencing of the nuclear genome taken from an over 30,000-year-old finger bone revealed that Denisova man was neither a Neanderthal nor modern human, but a new form of hominin. Minute traces of the Denisova genome are still found in some individuals living today. The comparisons of the DNA of modern humans and prehistoric human species provide new indications of how human populations settled in Asia over 44,000 years ago.  |
| Increased knowledge of the malaria parasite can provide better medicines Posted: 26 Sep 2011 05:19 AM PDT A recent article shows a link between changes in the malaria parasite and the absorption of pharmaceutical compounds. Increased knowledge of the malaria parasite and the connection with the development of resistance may contribute to the development of new malaria treatments.  |
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