Steroid hormones are derived from cholesterol and are fat-soluble molecules. These hormones work by passing through the cell membrane of the target cell, binding to specific receptors, and directing the ... Read More

DNA pioneer and co-discoverer of the structure of DNA, Francis Crick, dies at the age of 88.

Do you know how to construct a DNA model using candy or how to extract DNA from a banana? Visit the Biology How To  page to learn about these and ... Read More

A new study suggests that the brains of people who stutter process language differently.

Two experimental Alzheimer's drugs may help prevent the disease.

Lipids are very diverse in both their respective structures and functions. Examples of lipids include fats, phospholipids, and steroids.

A study shows that people who are blind from infancy are up to 10 times better at discerning pitch changes than sighted people.

One of the keys to being successful in biology is being able to understand the terminology. Difficult biology words and terms can be made easy to understand by becoming familiar ... Read More

The Golgi complex or Golgi apparatus is responsible for manufacturing, warehousing, and shipping certain cellular products, particularly those from the endoplasmic reticulum (ER).

Kids with upper respiratory infections and a nighttime cough don't show any improvement with over-the-counter cough medications compared to non-medicated syrup.

An experimental drug that inhibits integrase has shown promise in fighting the AIDS virus.

Lysosomes are membranous sacs of enzymes. These hydrolytic enzymes are capable of digesting nucleic acids, polysaccharides, fats, and proteins. In many organisms, lysosomes are also involved in  programmed cell death.

A new study suggests that secondhand smoke is much more deadly than previously thought.

Meiosis is a two-part cell division process in organisms that sexually reproduce. Take the Meiosis Quiz and find out how much you know about meiosis.

A study has shown that extremely obese kids can have abnormalities of the heart that increase their risk for a heart attack.