STATION 1: COMPARING DNA
The drawings below show a very small section of the DNA double helix from three very different organisms: a plant, a mammal, and a bacterium.
Each strand of DNA shown contains five nucleotides. Each nucleotide has:
S = sugar molecule called deoxyribose P = phosphate group and one of the four bases: A = adenine, C = cytosine, G = guanine, or T = thymine
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In the backbone of each strand in the DNA double helix molecule, the sugar of one nucleotide is bonded to the in the next nucleotide.
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The of the nucleotides in each strand of DNA extend toward each other in the center of the DNA double helix molecule.
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THE SUPER MOST IMPORTANT BASE PAIRING RULE!!!!
A in one strand always pairs with in the other strand.
G in one strand always pairs with in the other strand.
