DNA
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describe and draw the structure of a nucleotide
cotains a 2-deoxyribose molecule covalently bonded to a phosphate ion and one of four bases. they link together to form a strand when a phosphate ion bonds to the deoxyribose molecule of another nucleotide via a phosphodiester bond
what does 5’ and 3’ end mean?
refers to the number of Carbon atom in the 2-deoxyribose sugar where the phosphate are bonded
show how there nucleotides and phosphate groups react to form the sugar-phosphate backbone
identify the N atoms on the bases that bond to the 2-deoxyribose of nucleotides
label the diagram to show the H bonds formed between A and T
show how the H bonds form between C and G
structure of DNA
consists of two complementary strands that run in opposite directions (antiparallel). complementary base pairs have H bonds between them