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Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by
Insert the needle with the beveled side up. Keep the angle low, 10 to 30 degrees. Insert the needle with the beveled side up. Keep the angle low, 10 to 30 degrees.
Locating angle of louis Locating angle of louis
Surface winds travel at an angle across isobars, toward low pressure. Surface winds travel at an angle across isobars, toward low pressure.
Opener Bronze sculpture of the Watson–Crick model for double-helical DNA Opener Bronze sculpture of the Watson–Crick model for double-helical DNA
The B-form DNA double helix The B-form DNA double helix
Video: Genetic distance between human groups

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