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Posts Tagged ‘DNA’

Want to expand your knowledge in science. We’ll show you an explanation of which is DNA (deoxyribonucleic acid) as used.

The DNA is located everywhere, we perceive in the news and in any media. It is stored in small molecules visible to the naked eye, but has tons of information. Are you working in any investigation of domestic science? Maybe in a lab works college or professional and would like to learn more regarding the different phases. If doubts, the best way to start is to gather information before continuing with a deeper understanding.

What exactly is DNA? DNA is found in everything that has life. Their abbreviations denote ‘deoxyribonucleic acid’ and is the material of the genetic map. DNA extraction involves removing a portion of a person that contains genetic information for consideration. In some cases, use a hair in blood and in other instances is used or skin cells. The extraction of DNA is very simple to carry out when you have the right material.

How to Use residential component you can complete a DNA extraction cut as simply as dried peas with tools you can find in your own home. All you need are dried beans, any brand of meat tenderizer, rubbing alcohol, cleaning fluid for dishes, a blender, a glass container and an object for combianr everything.

This is a great test run with children, do not use corrosive, inexpensive and easy to perform, in addition to providing some entertainment combined with science. Combine ½ cup of peas with a cup of water until a thick mixture . You get a uniform mixture in the center that then want to use. Pour some of the content in a glass container, should be about two inches. You must empty the tank slowly to keep the other half.

Add a tablespoon of cleaner and beat slowly. Then add a pinch of meat tenderizer and continue stirring slowly for five minutes. Empty a small amount of alcohol into the mix, allowing it to move to the sides of the glass. What you should do? Alcohol is placed on the surface of the mix and you requirirá much of it to produce a layer of three inches above the peas.

After a few moments will manifest on the surface bubbles. Attached to these bubbles you can see strands of DNA and after fifteen minutes it will have surfaced and can be removed with a spoon. This is a fantastic way to launch a residential project of extraction of DNA. If you work with DNA frequently then you will want to do some preliminary investigation and finding the right equipment for the extraction of DNA. This also allows you to perform the extraction of objects other than dry peas.

Perhaps one of the words most used and most frightening when it comes to their health and reverse disease. Cancer is the term and is used for a group of diseases that have a common denominator: the transformation of normal cell into one that behaves very dangerous for human body.

The cell is the simplest element, endowed with life itself, which is organized tissues. It consists of a mass of protoplasm surrounded containing a nucleus.

A cell wall surrounds the cell and separates it from its environment. Inside the nucleus is the DNA that contains the information that programs the cell life.
Man is composed of millions of cells.

The cell divides and in doing so their structures are also divided into other exactly the same as above, with the same components and features than the original.

Normal cells grow at a rate limited and remain within their respective areas. Muscle cells are formed and grow in the muscles, not bones, those of the kidneys do not grow in the lungs, etc.

These functions and this growth rate is determined by the DNA. Some cells have less time to live than others, such as intestinal cells have a life span of two weeks while red blood cells live for about three months.

Other cells will live for the lifetime of the person and only divide to replace themselves, this would be the case of bone cells that act when it comes to repair a fracture.

The life of each group of cells is different and operate on it to make its DNA is different for each type of cell. Each cell is distinct.

The blood brings oxygen and nutrients necessary for cellular life and collect the waste products produced by cells and transported to the filtering and cleansing organs (kidneys, liver, lungs).

Lymph is a colorless liquid that is composed mostly by lymphocytes, a type of white blood cells and travels through the body through the lymphatic vessels.

The immune system is responsible for defending the body by white blood cells that seek and destroy bacteria and viruses.

Leukocytes travel in the blood and lymph and accumulate in areas where infection is to surround and kill the bacteria or virus and, later, migrate through lymphatic vessels to lymph nodes.

Lymph nodes are like clusters of grapes located in different parts of the body.

Each node receives the cell and this is where they are filtered and destroy bacteria, cell debris and worn themselves.

When an infection occurs, the lymph nodes may swell. If the infection occurs in a tooth, will ignite the neck. If the infection is in one hand, will be increased for those in the armpit. The lymph nodes also can be enlarged when a tumor.

Normal cell becomes a cancer cell to become due to a change or mutation in DNA. Sometimes these cells, whose genetic makeup has changed, die or are eliminated in the lymph nodes. But other times, still alive and reproduce.

The cancer cells look different, either because its form has changed or because nuclei contain larger or smaller.

These cells are unable to perform the functions that correspond to cells belonging to that tissue.