Chronic stress causes genetic changes in chickens

How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised ...

A new RNA catalyst from the lab

Enzymes enable biochemical reactions that would otherwise not take place on their own. In nature, it is mostly proteins that function as enzymes. However, other molecules can also perform enzymatic reactions—for example ...

Searching for the chemistry of life

In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form ...

Team decodes another piece of the histone code puzzle

Inside our cells, DNA is tightly packed and spooled around proteins called histones. Packaging DNA in this way allows large amounts of genetic material to exist inside the cell in a final form called chromatin. Tiny enzymes ...

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