After blood passes into the mosquito gut, the parasites quickly turn into male and female forms the gametes and emerge from their hiding place inside the red blood cells to mate.

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Dr He and his colleagues looked at the genes of airmen who classified themselves as black and found that the ones infected with HIV were more likely to lack red cells bearing the Duffy receptor than chance would suggest.

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At sunset, the sun appears red (the blue light has been scattered out of that image, too), so the cells of the eye that detect red are overloaded and incapable of registering weaker red signals.

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A1C is the amount of sugar that has attached to hemoglobin the substance that carries oxygen inside red blood cells in your blood.

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When a blue light is applied to the area, it activates the drug and shows any abnormal cells as red.

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The treatment starts with a red wine and vitamin E exfoliant applied all over the body to scrub away dry skin cells.

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In particular, thin cells fail to capture much light at the red end of the spectrum.

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The mutation means that Duffy receptor proteins are not made in red cells.

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The vast majority of colorblind people have trouble seeing red or green, due to a genetic defect in the color-sensing cells, called cones, at the back of the eye.

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Meat, especially red meat, being the most readily assimilable protein, becomes a banquet for cancer cells.

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LaserMotive uses special cells made with arsenic and gallium, which are better able to capture the near-infra-red wavelengths of its laser beam.

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