Genetics
- Genetics
DNA: Our ancient ancestors had lots more
Ancestral humans and their extinct relatives had much more DNA than do people today, a new study finds. It mapped genetic differences over time among 125 different human groups.
- Genetics
Scientists Say: Loci
The DNA in our bodies contains thousands of genes, all with different functions. We use a special word for their location.
- Genetics
Scientists Say: Allele
What makes your eyes green or brown? Different versions of the same gene. We call these alternative forms by a separate name.
- Genetics
DNA 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.
- Health & Medicine
New 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.
- Health & Medicine
A germ stopper for blood products
A new system can disable almost all viruses or bacteria that are lurking in donated blood platelets and plasma.
- Genetics
Altered 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.
- Health & Medicine
Catching 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.
- Health & Medicine
Do 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.
- Life
How 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.
- Genetics
Silencing 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.
- Animals
Penguins? 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.
