Genetics
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GeneticsDNA in ivory pinpoints elephant poaching hot spots
Thousands of elephants have been killed for their ivory tusks. A new study used DNA in ivory to trace where most of the killings happen.
By Meghan Rosen -
Health & MedicineNew ways to fight the flu
Influenza sickens millions each year. A worldwide epidemic could kill many of them. Fortunately, new ways to fight the flu offer hope — before it’s too late.
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Health & MedicineA germ stopper for blood products
A new system can disable almost all viruses or bacteria that are lurking in donated blood platelets and plasma.
By Tara Haelle -
GeneticsAltered gene leaves people totally painfree
That’s not a good thing for these people. Still, it could lead to a new class of drugs to help people who now suffer from chronic pain.
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Health & MedicineCatching ZZZs may retrieve lost memories
Forgetful? Maybe you’ve forgotten to get enough shuteye. A study in fruit flies suggests that a good sleep can boost their ability to remember things.
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Health & MedicineDo mosquitoes love you? Blame your parents
By studying twins, scientists found that how attractive we are to mosquitoes depends partly on our genes. That could lead to better bug repellents.
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LifeHow DNA is like a yo-yo
When not in use, DNA coils tightly. But it must uncoil for the cell to ‘read’ its genes. Physical forces affect how easily that happens, new data show.
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GeneticsSilencing genes — to understand them
Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.
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AnimalsPenguins? How tasteless
Penguins may look all dressed up in tuxedo-wear, but their taste buds are the bare minimum. This means that the birds will never sense more than a hint of their meals’ true flavors.
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Health & MedicineMice can teach us about human disease
Humans and mice look and act very differently. But 85 to 90 percent of their genes are the same or quite similar. So an international group of scientists is deciphering the instructions in mouse genes to help us better understand our own.
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EnvironmentImmunity: Environment can have big impact
A study on twins suggests that environmental factors can shape a person's immune system more than genes do.
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EnvironmentAir pollution can mess with our DNA
New research suggests a type of air pollution — diesel fumes — can affect your health. It inappropriately switches some genes on, while turning off others.