Dna Critical Thinking

Decent Essays
Adnane Harbouche
Developmental Psychology
Februrary 6, 2015 Critical Thinking Paper 1 DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a persons 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 Mitochondria DNA or mtDNA). The information in DNA is stored as a code made up of four chemical bases: Adenine (A), guanine (G), cystoine (C) and Thymine (T). Human DNA consist of about 3 billion bases and more then 99 percent of those bases are the same in all people. the order ,or sequence, of these bases determines the information
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yes, i said a cookingbook; but nor just any cookbook, it contains the secret recipe for creating living thinks. Each recipe determines if you are a boy or a girl, it gives you skin color and tells your body to have two arms and two legs instead of a tail and fur, or even tentacles. Humans have 23 pairs of chromosomes, one from each parent. That is 46 in each cell. Now lets call each cookbook a chromosome so that would mean each book would have two editions of 23 different books. Hope I didn’t lose you yet. To sum it all up, each recipe in the book is a gene. Can you imagine that this book collection would contain AT LEAST 30,000 recipes! So I bet you’re thinking “How does DNA work” In a particular night, when I actually wanted to cook something for once and not just rely on mine oh so beloved Peanut-butter and Jelly sandwich or cereal. I looked over across my apartment and see that all of my 23 cookbooks bolted to a shelf in the living room. ( try to keep up wit hem here, if you think this is silly, wait until you see the logic behind science). Ok, so how am I going to make a recipe if I can’t be in the same room at the same time? The only solution to that was to manually write down and copy every detail of the ingredient and bring it to the kitchen. the recipe (gene) is copied and since there are two in each cookbook (chromosome) , the recipe then is copied down twice. One from each cookbook. Each copy of

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