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How does your body know the difference between dominant and recessive genes?
science.howstuffworks.com/life/genetic/question669.htm
Ever since I took biology in high school I have wondered -- why do humans (and plants and animals) have two of every gene, and why is one "dominant" and the other "recessive"? How does my body know which one is dominant? How does it pick between the
What causes heat stroke?
health.howstuffworks.com/wellness/diet-fitness/information/question699.htm
A friend of mine nearly died from heat stroke, and it was a major emergency. What causes someone to almost die from a little heat?
What is OxyContin?
health.howstuffworks.com/medicine/medication/question706.htm
I keep hearing about some drug called "OxyContin" in the news. What is it? Why all the fuss?
How do they get the balls in ball bearings so perfectly round and smooth?
science.howstuffworks.com/transport/engines-equipment/question513.htm
Ball bearings can be found in a wide variety of machines and gadgets. If you take a look at one of them you may notice how perfectly smooth they feel and appear. How do they get like that? Find out how ball bearings are created in this article.
How does the walkie-talkie feature on a Nextel phone work?
electronics.howstuffworks.com/question530.htm
Nextel phones offer a service that allows you to push a button and connect with another Nextel user. Find out how this "walkie-talkie" feature works.
What are chiggers and how do they bite?
animals.howstuffworks.com/arachnids/question488.htm
What are chiggers, and do they bite you or burrow under your skin? How do they work?
How Refractive Vision Problems Work
health.howstuffworks.com/human-body/systems/eye/vision-refractive.htm
Millions of people have refractive vision problems -- when the eyes get blurry or can't focus on an object. Learn about four major types of refractive vision problems.
Why is it considered unlucky when the thirteenth day in a month falls on a Friday?
people.howstuffworks.com/question614.htm
Why is it considered unlucky when the thirteenth day in a month falls on a Friday?
What Is Mayonnaise?
recipes.howstuffworks.com/food-facts/question617.htm
Mayonnaise can be found on everything from burgers to salad dressing but what exactly is mayonnaise? Learn about mayonnaise in this article.
What if I forgot to remove a piercing before an MRI?
science.howstuffworks.com/remove-piercing-before-mri.htm
The magnets found in an MRI machine are incredibly powerful. It can pull a stethoscope right out of a doctor's lab coat. So what would happen if you forgot to take out an earring? Ouch!