Genetics
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Genetics
Explainer: DNA hunters
Snippets of DNA can be left behind by a passing organism. Some researchers now act as wildlife detectives to identify the sources of such cast-off DNA.
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Genetics
Can DNA editing save endangered species?
Scientists may be able to help endangered species by changing the genes of a whole population of wild animals. But some question whether that is wise.
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Plants
Increasingly, chocolate-makers turn to science
Chocolate is delicious and may even have health benefits. To make sure there’s enough to go around, scientists are growing heartier cacao trees.
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Agriculture
How to grow a cacao tree in a hurry
Chocolate is made from the pods of the cacao tree. To reproduce this plant quickly for research, scientists use clones.
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Health & Medicine
Janet’s chocolate mousse pie
The top two ingredients — dark chocolate and tofu — both have a reputation for being healthy. The good news for those who don’t like tofu: You can’t taste it in this pie. It just tastes like a very rich, thick chocolate mousse.
By Janet Raloff -
Genetics
New tools can fix genes one letter at a time
New tools can edit the genome one letter at a time, correcting common errors that lead to disease.
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Life
Doctors repair skin of boy dying from ‘butterfly’ disease
Researchers fixed a genetic defect, then replaced about 80 percent of a child’s skin. This essentially cured the boy’s life-threatening disease.
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Genetics
Small genetic accident made Zika more dangerous
A new study finds that a tiny mutation made the Zika virus more dangerous, by helping it kill cells in the fetal brain.
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Genetics
Explainer: Why scientists sometimes ‘knock out’ genes
How do we learn what a particular molecule does in the body? To find out, scientists often 'knock out' the gene that makes it. Here’s how.
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Materials Science
One day, your sunscreen may be made from DNA
A new approach to sunscreen could use a thin layer of DNA to protect skin cells — and hopefully prevent cancer.
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Genetics
Genes may predict how well the flu vaccine will work in young people
The activity of nine genes predicted how well people 35 and under would respond to the flu vaccine.
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Genetics
Molecular scissors fix disease-causing flaw in human embryos
Researchers moved closer to being able to fix gene-edited embryos in people. They removed a flawed gene that causes heart failure