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Genetics News
Fri, 24 Apr 2015 08:56:30 EDT
Beyond genes: Are centrioles carriers of biological information?
Scientists have discover that certain cell structures, the centrioles, could act as information carriers throughout cell generations. The discovery raises the possibility that transmission of biological information could involve more than just genes. Centrioles may actually be carriers of information, which holds profound implications for biology and disease treatment.
Fri, 24 Apr 2015 08:50:13 EDT
Discovery of a protein capable of regulating DNA repair during sperm formation
Researchers have discovered that the signalling route - a cascade activation of several molecules - triggered by the ATM protein regulates DNA repair during the production of spermatocytes by meiosis, the cell division process which yields spermatozoa.
Fri, 24 Apr 2015 08:50:01 EDT
Understanding the body's response to worms and allergies
Scientists are a step closer to developing new therapies for controlling the body's response to allergies and parasitic worm infections.
Thu, 23 Apr 2015 14:27:42 EDT
A GPS for chromosomes: Microtubules direct chromosomes during cell division
Scientists have identified a " Highway Code" within cells, a finding that changes the way we perceive how chromosomes move during cell division. Using chromosomes as a model to explain this navigation system, the research team show how this signaling mechanism determines the path through which molecular transporters travel. They have revealed that the existence of specific signals on microtubules -- which work as intracellular highways -- give directions to chromosomes on which route to take in the course of cell division.
Thu, 23 Apr 2015 12:58:54 EDT
Looking to fossils to predict tooth evolution in rodents: Ever-growing molars in the future?
Fifty million years ago, all rodents had short, stubby molars -- teeth similar to those found in the back of the human mouth, used for grinding food. Over time, rodent teeth progressively evolved to become taller, and some rodent species even evolved continuously growing molar teeth. A new study predicts that most rodent species will have ever-growing molars in the far distant future.
Thu, 23 Apr 2015 12:48:12 EDT
Entire genomes of woolly mammoths mapped: Clues to extinction, possibility of bringing mammoths back
An international team of researchers has sequenced the nearly complete genome of two Siberian woolly mammoths -- revealing the most complete picture to date -- including new information about the species' evolutionary history and the conditions that led to its mass extinction at the end of the Ice Age.
Wed, 22 Apr 2015 14:25:03 EDT
DNA of bacteria crucial to ecosystem defies explanation
The genome of an important bacteria contains far more 'junk DNA' than scientists expected -- making its genome more closely resemble that of a higher lifeform.
Wed, 22 Apr 2015 13:56:14 EDT
Toxic mushroom-based drug may help battle colorectal cancer
For some time, cancer scientists have considered the toxin, alpha-amanatin derived from “death cap” mushrooms, as a possible cancer treatment. However, due to its penchant for causing liver toxicity, its potential as an effective therapy has been limited.
Wed, 22 Apr 2015 12:15:46 EDT
Poor diet may contribute to the decline in British bees
The changing British landscape could be contributing to the decline in its bee populations, according research. Analysis of 35 hives in 20 sites in North West England found that honeybees living near areas of extensive farmland were surviving on a lower protein diet than those in hives near natural grasslands and woodlands.
Tue, 21 Apr 2015 13:19:25 EDT
Battle in the gut: Immune cells help 'good bacteria' triumph over 'bad bacteria'
The body's immune system may be the keeper of a healthy gut microbiota, report scientists. They found that a binding protein on white blood cells could affect whether or not mice produced a balanced gut microbiota. Without the protein, harmful bacteria were more easily able to infect. Why this happens is unclear, but it may be that the immune system has a way to sense the presence of invading intestinal bacteria.
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