News tagged with horizontal gene
Blocking the spread of antibiotic resistance in bacteria
Biology /
Dec 18, 2008 |
2.5 / 5 (2) |
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It's as simple as A, T, G, C. Northwestern University scientists have exploited the Watson-Crick base pairing of DNA to provide a defensive tool that could be used to fight the spread of antibiotic resistance in bacteria ...
Darwin's Tree of Life May Be More Like a Thicket
Biology /
Jan 27, 2009 |
4.8 / 5 (9) |
2
(PhysOrg.com) -- In On The Origin of Species, Darwin used the image of a tree of life to illustrate how species evolve, one from another. Even today, branches sprouting from lower branches (representing ancest ...
Forced evolution: Can we mutate viruses to death?
Nov 10, 2008 |
4.5 / 5 (17) |
12
It sounds like a science fiction movie: A killer contagion threatens the Earth, but scientists save the day with a designer drug that forces the virus to mutate itself out of existence. The killer disease? Still a fiction. ...
Aphids borrowed bacterial genes to play host
Mar 09, 2009 |
4.5 / 5 (2) |
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Most aphids host mutualistic bacteria, Buchnera aphidicola, which live inside specialized cells called bacteriocytes. Buchnera are vital to the aphids well being as they provide essential amino acids that are scarce in its ...
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Immunity-Related Genes in Leafcutting Bee Uncovered
8 hours ago |
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(PhysOrg.com) -- The first analysis of immunity-related genes in a solitary bee has been conducted by Agricultural Research Service (ARS) scientists and cooperators.
Right/left handedness of snails changed in the lab
10 hours ago |
5 / 5 (3) |
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(PhysOrg.com) -- Like most animals, snails have either left- or right-handed asymmetry (chirality), both internally and externally, and the handedness is hereditary. A new study has for the first time found ...
Rat pack: Scientists warming up to African rodent
Nov 28, 2009 |
5 / 5 (9) |
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(AP) -- Naked mole rats don't get cancer. They shrug off brushes with acid and age so well, some are older than the college-aged researchers handling them.
Wide heads give hammerheads exceptional stereo view
Nov 27, 2009 |
4.6 / 5 (8) |
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Hammerhead sharks are some of the Ocean's most distinctive residents. 'Everyone wants to understand why they have this strange head shape,' says Michelle McComb from Florida Atlantic University. One possible ...
Ecological speciation by sexual selection on good genes: Is speciation adaptive?
Nov 26, 2009 |
5 / 5 (1) |
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Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...
Nanowires key to future transistors, electronics
Nov 26, 2009 |
4.6 / 5 (9) |
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(PhysOrg.com) -- A new generation of ultrasmall transistors and more powerful computer chips using tiny structures called semiconducting nanowires are closer to reality after a key discovery by researchers ...
Knockouts in human cells point to pathogenic targets
Nov 26, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Whitehead researchers have developed a new approach for genetics in human cells and used this technique to identify specific genes and proteins required for pathogens.
Scientists reveal 'protector' gene behind 50-fold increase in number of bowel tumours
Nov 26, 2009 |
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(PhysOrg.com) -- Cancer Research UK scientists have shown that deleting a single gene can increase the average number of tumours in the bowel by 50-fold, according to research published in PNAS today.
Whiteflies sabotage alarm system of plant in distress
Nov 26, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- When spider mites attack a bean plant, the plant responds by producing odours which attract predatory mites. These predatory mites then exterminate the spider mite population, thus acting ...
A RANK insider resolving the enigma of the fever chart
Nov 25, 2009 |
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Mammals have evolved a complex system for controlling bone remodeling. Babies require calcium for healthy bones and they obtain it from their mother's milk. Nursing mothers release calcium from their bones. Surprisingly, ...
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