Genetic Testing And Discrimination
Genetic testing is the use of recombinant DNA technology to obtain information about a person's genome. The first genetic tests were conducted during the 1960s for the disease phenylketonuria (PKU). Individuals with PKU do not metabolize an amino acid called…
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Astronomy
Light Fantastic
On the next hot summer day, imagine what would happen if the Sun suddenly became one million times brighter.…
Mathematics
Eratosthenes Measured Earth’s Circumference—Centuries Before Columbus Sailed
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Biology
The Ants Go Marching One by One, Hurrah!
Have you ever wondered how ants know the way from one place to another? Even when you remove them all, they…
Geology
Hurricanes, The Basics
There is nothing like them in the atmosphere. Born in warm tropical waters, these spiraling masses require a…