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Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Many different colors of fluorescent proteins are now available Many different colors of fluorescent proteins are now available
Biosynthesis of nucleic acids and proteins Biosynthesis of nucleic acids and proteins
Monosaccharide, e.g., glucose Monosaccharide, e.g., glucose
Proteins can have several levels of structure Proteins can have several levels of structure
Termination of translation by release factor (eRF) proteins in eukaryotes Termination of translation by release factor (eRF) proteins in eukaryotes
Directional cloning of DNA molecules Directional cloning of DNA molecules
Video: Mechanisms for chromosome movement Animation

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