A single gene, doublesex, controls wing mimicry in butterflies

A single gene regulates the complex wing patterns, colors and structures required for mimicry in swallowtail butterflies, report scientists from the University of Chicago, March 5 in Nature. Surprisingly, the gene described, ...

Genes that evolve from scratch expand protein diversity

One of the most important questions in biology is how rapidly new proteins evolve in organisms. Proteins are the building blocks that carry out the basic functions of life. As the genes that produce them change, the proteins ...

Humans and chimps share genetic strategy in battle against pathogens

A genome-wide analysis searching for evidence of long-lived balancing selection—where the evolutionary process acts not to select the single best adaptation but to maintain genetic variation in a population—has uncovered ...

Epigenetic 'switch' regulates RNA-protein interactions

Chemical changes - also known as epigenetic modifications - to messenger RNA (mRNA) are thought to play an important role in gene expression, and have recently been found to affect biological processes such as circadian clock ...

Genetic screening tool identifies how the flu infiltrates cells

Researchers at the University of Chicago have developed a genetic screening tool that identified two key factors that allow the influenza virus to infect human lung cells. The technique uses new gene editing tools to create ...

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