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Nucleic Acids
Nucleic Acids
8
Biochemistry
11th Grade
11/14/2011

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Term
DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are composed of monomers called
Definition
nucleotides
Term
Nucleotides have three parts:
Definition
ribose in RNA or
Deoxyribose in DNA
Phosphate group
Nitrogenous base
Term
DNA
Definition
o nitrogenous bases: adenine, thymine, cytosine, and guanine
o double Helix structure
o found in nucleus
Term
RNA
Definition
o nitrogenous bases: adenine, uracil, cytosine, and guanine
o single stranded
o can leave the nucleus
Term
polynucleotide
Definition
• A nucleic acid polymer, forms from the nucleotide monomers when the phosphate of one nucleotide bonds to the sugar of the next nucleotide
Term
double helix
Definition
Two polynucleotide strands wrap around each other to form a DNA
Term
two strands are associated because particular bases always hydrogen bond to one another
Definition
base pairs
Term
gene
Definition
A particular nucleotide sequence that can instruct the formation of a polypeptide
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