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What is Dna

2010-11-21T05:00:00.000-08:00

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called DNA ).

The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people. The order, or sequence, of these bases determines the information available for building and maintaining an organism, similar to the way in which letters of the alphabet appear in a certain order to form words and sentences.

DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix. The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.

An important property of DNA is that it can replicate, or make copies of itself. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.

what is a cell

2010-03-06T11:40:00.000-08:00

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves.

Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell. Human cells contain the following major parts, listed in alphabetical order:

Homes of the rich

2010-02-17T06:44:00.000-08:00

Many people have read the various books in the Rich Dad, Poor Dad series of self-help books by Robert Kiyosaki. We've heard from people who love his work, and also from people who think he's an idiot. While we don't agree with everything he says, there is one element of truth to his books that is hard to ignore (because he repeats it so often):

"Fill your life with things that put money in your pocket every month."

He defines the above category of possessions as "assets" (which we do not agree with -- check your local dictionary). But the advice is still sound. If you are currently working for a living, you should set aside as much money as you can and invest it in things that produce a profit every month without you actually doing any work (known as "passive income").

Eventually, if you keep doing that, you will be at a point where you don't need to work for a living anymore. You sit back one day and realize that you can thrive just on the amount of money that is coming in every month from your "passive" investments. And that's the day you officially retire from the rat race. But that begs the question, "What passive investments does Robert Kiyosaki recommend?"

Most people who have read the Rich Dad, Poor Dad books don't actually know. He never seems to come right out and tell you to invest in anything specific, although most readers probably get the idea that he leans towards real estate investments.

There's only one problem with that, which is the acquisition stage. Buying rental property is a difficult thing to do, even if you are a student of various "no money down" types of real estate schools or creative real estate financing. You will soon discover that most of the "no money down" real estate schemes focus on acquiring real estate with owner financing. The theory is that you acquire it with owner financing, wait a year or two for the value of the property to go up, and then sell it for a profit or refinance it at better rates. All the while you are renting it to someone who is paying the monthly bill for you.

That's fine except for one thing -- "no money down" real estate schemes only work when the value of the property goes up. What happens if it goes down? Basically, you lose your shirt because most of the "no money down" real estate schemes leave you in a precarious position financially for the first few years. If you are teetering on the edge of bankruptcy and things don't work out the way you planned, it's easy to tip over. But there is an alternative to this mess.

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2010-02-17T06:41:00.000-08:00

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2010-02-17T06:06:00.000-08:00

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