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Questions: 1. What is DNA? Is a very large, long molecule. It contains all the genetic instructions to create an organism. 2. What does it do? It is a set of instructions for how to build and run every part of an organism. 3. What are the six basic elements found in the body? CHNOPS – Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur- These elements join together to form molecules. The elements in CHNOPS make up the sugar, phosphate and nitrogen bases that are used to create DNA. Vocabulary: Deoxyribonucleic acid (DNA)- a molecule containing an organism’s genetic material Nucleotide- molecules made of a nitrogen base, a sugar and a phosphate group Sugar- a molecule that is part of a nucleotide Phosphate- a molecule that is part of a nucleotide Double helix- the shape of a DNA molecule. It looks like a twisted ladder (spiral staircase) Nitrogen bases: Four different molecules that contain nitrogen Cytonise (C) Quinine(G) Adenine (A) Thymine (T) DNA Nitrogen Bases Phosphates cytosine adenine Elements (CHNOPS) Pair Pair DNA Nucleotides Nitrogen Bases Phosphates Sugar guanine cytosine Pair adenine Thymine Pair Elements Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur (CHNOPS)