Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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The longest a person has survived after a heart transplant is 24 years.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Measuring Electrical Charge
Crystal structures of SecY complex in “closed” and “open” conformations
Backtracking in an elongation complex
Golgi Complex
The relationship between the Golgi complex and lysosomes
Diagrams a mitotic chromosome, showing how chromatin is condensed to produce it