Study refutes theory linking cognition, genes and income

Researchers have cast doubt on a widely-held belief that connects family income with cognitive development, according to a new study published in Proceedings of the National Academy of Sciences.

Clues to the innate drug resistance of a cocoa-fermenting pathogen

At first glance, the yeast Candida krusei seems as innocuous as microbes come: it's used for fermenting cocoa beans and gives chocolate its pleasant aroma. But it's increasingly found as a pathogen in immunocompromised patients—and ...

Party discipline for jumping genes

Jumping genes, transposons, are part of the genome of most organisms, aggregated into families and can damage the genome by jumping. How hosts suppress the jumping is well investigated. Why they still can jump has hardly ...

A small piece of DNA with a large effect on leaf shape

Millions of years ago, some plants in the mustard family made the switch from simple leaves to complex leaves through two tiny tweaks to a single gene. One tweak to a small enhancer sequence gave the gene a new domain of ...

How the pangolin got its scales – a genetic just-so story

Everyone loves animal oddities. Darwin and Lamarck pondered the advantages of the giraffe's long legs and neck, while a few decades later Rudyard Kipling explained how the leopard got its spots. Today genome sequencing is ...

Is nature mostly a tinkerer or an inventor?

The Krüppel-like factor and specificity protein (KLF/SP) genes are found across many species, ranging from single cell organisms to humans. This gene family has been conserved during evolution, because it plays a vital role ...

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