DNA: Difference between revisions

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Ala Jelani, Eran Hodis, Eric Martz, Joel L. Sussman, Adithya Sagar, Wayne Decatur, David Canner, Angel Herraez, Frédéric Dardel, Karl Oberholser, Joseph M. Steinberger, Alexander Berchansky, Ann Taylor, Karsten Theis

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 === Double Helix ===
-DNA consists of two polynucleotide chains, <scene name='DNA/B-dna/16'>twisted around each other to form a double helix</scene>. The nucleotide in DNA is composed of of a <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/19'>5' phosphorylated sugar</scene> which is a beta-D-2'- deoxyribose and a purine or a pyrimidine <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/18'>base</scene>.  The four types of bases are the two double ringed purine base <scene name='DNA/B-dna/18'>Adenine (A)</scene> and <scene name='DNA/B-dna/19'>Guanine (G)</scene> and the two single pyrimidine bases <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/6'>Thymine (T)</scene> and <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/5'>Cytosine (C)</scene>.Each nucleotide in a DNA chain is linked to another via <scene name='User:Adithya_Sagar/Workbench/Retest/B-dna/2'>3',5' phosphodiester bond</scene>. There are four nucleotides in DNA.   The sugar-phosphate backbone of the DNA is very regular owing to the phosphodiester linkage whereas the ordering of bases is highly irregular.<ref name='Watson'> Watson, James D, Nancy H. Hopkins, Jeffrey W. Roberts, Joan Argetsinger Steitz, Alan M.Weiner ''Molecular Biology of Gene'' (4th ed.). The Benjamin/Cummings Publishing Company Inc.pp. 239-249. ISBN 0-8053-9612-8</ref>
+DNA consists of two polynucleotide chains, <scene name='DNA/B-dna/16'>twisted around each other to form a double helix</scene>. The nucleotide in DNA is composed of of a <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/19'>5' phosphorylated sugar</scene> which is a beta-D-2'- deoxyribose and a purine or a pyrimidine <scene name='User:Adithya_Sagar/Workbench_newDNA/B-dna/18'>base</scene>.  The four types of bases are the two double ringed purine base <scene name='DNA/B-dna/18'>Adenine (A)</scene> and <scene name='DNA/B-dna/19'>Guanine (G)</scene> and the two single pyrimidine bases <scene name='DNA/B-dna/19'>Thymine (T)</scene> and <scene name='DNA/B-dna/21'>Cytosine (C)</scene>.Each nucleotide in a DNA chain is linked to another via <scene name='User:Adithya_Sagar/Workbench/Retest/B-dna/2'>3',5' phosphodiester bond</scene>. There are four nucleotides in DNA.   The sugar-phosphate backbone of the DNA is very regular owing to the phosphodiester linkage whereas the ordering of bases is highly irregular.<ref name='Watson'> Watson, James D, Nancy H. Hopkins, Jeffrey W. Roberts, Joan Argetsinger Steitz, Alan M.Weiner ''Molecular Biology of Gene'' (4th ed.). The Benjamin/Cummings Publishing Company Inc.pp. 239-249. ISBN 0-8053-9612-8</ref>
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