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dnna prtoeins and sh

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dna   Deoxyribonucleic acid - a molecule in the nucleus of a cell that determines the type of proteins a cell makes A chemical code that produces proteins i.e. Enzymes that determine the structure of cells & the way it functions  
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Nucleic acid   an organic storage molecule containing many nucleotides in a chain Dna ( + rna, atp/adp) are all types of nucleic acids  
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Nucleotides   the base unit (monomer) of all nucleic acids  
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found vague makeup   Found in both the nucleus & mitochondria Dna is made up of nucleotides  
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DNA monomer structure   A phosphate group A sugar nitrogenous bases  
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nitrogenous bases   Adenine (A) Thymine (T) Cytosine (C) Guanine (G) AT 2 hydrogen bonds CG 3 hydrogen bonds  
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nucleotide combined structure   form the basis of a ladder-like molecule sugar/phosphate - upright Joined base pairs - rungs That twist up to form a double helix structure 5' 3' (prime)  
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size & storage   2-3 metres & width of only 2 millionths of a mm extremely long, so in order to store them in the nucleus, dna strands are tightly bound around special proteins  
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Histone   a special protein around which dna is tiightly coiled to form chromatin  
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Chromatin   a tangled network of dna & histones nondividing cell  
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Chromosome   structure which carries dna/ggne information in the form of genes  
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Chromatid   one of the 2 identical halves of a chromosome  
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Centromere   link between a pair of sister chromatids  
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Mitochondrial dna (mtDNA)   located in the mitochondria mtDNA is in the form of small circular molecules that are not bound to prooteeins ~5-10 molecules per mitochondria mtDNA has 37 genes essential for mitochondria to function normally  
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mDNA genes   24 genes code for making of transfer RNA, involved in protein synthesis 13 genes have instruction food making enzymes, needed for cellular respiration (37)  
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The structure & function of each individual cell is depend on   the suite of proteins produced within it. Proteins provide the essential link between coded instructions in the DNA called the genotype and the functioning cell  
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Genotype   genetic constitution of an individual  
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Phenotype   the physical appearance of an individual as determined by their genetic constitution/ its protein expression  
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Gene   a section of a chromosome that codes for making a protein genes on a chromosome range from ~200-2000 genes  
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difference between 1 gene & the next   Order of bases along the DNA Number of bases in that section  
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gene code   order of the bases along the DNA strand (contains instructions) for the production of a specific protein. These proteins create the structure & perform the actions needed for the cells to survive, grow & function  
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