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Genes & Cells

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Streptococcus pyogenes

BUGGED  In this scanning electron microscope image, Streptococcus pyogenes bacteria (yellow) are shown on top of a white blood cell. Different strains of the bacteria trigger a different reaction from the immune system thanks to extra genes that vary among strains.

illustration of scissors cutting DNA

TECHNICAL DIFFICULTIES  Scientists doing gene editing need to be aware of potential immune system attacks against a DNA-cutting protein.

Blowfly

UNUSUALLY COOL  If this blowfly starts overheating, it has a drool, reswallow, repeat  trick for reducing its temperature.

Genes & Cells

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