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Molecular Genetics

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Term
Definition
show process in which chromosomal DNA is copied before mitosis or meiosis.  
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show shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.  
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show carbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen: includes adenine,guanine,cytosine,,thymine,and uracil.  
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Codon   show
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mRNA   show
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show RNA that makes up the ribosomes: clamps onto mRNA and uses its information to assemble amino acids in the correct order.  
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show process in the cell nucleus where enzymes make a RNA copy of a DNA strand.  
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tRNA   show
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Translation   show
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Chromosomal mutation   show
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show mutation that occurs when a single base is added or deleted from DNA; causes a shift in the reading of codons by one base.  
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show any agent that can cause a change in DNA; includes high energy radiation, chemicals,or high temperatures.  
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Mutation   show
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show mutation in a DNA sequence; occurs from a change in a single base pair.  
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show genetically identical copies of an organism or gene.  
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show in recombinant DNA technology, the rejoining of DNA fragments by vectors and other enzymes.  
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Genetic engineering   show
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show small ring of DNA found in bacterial cell that is used as a biological vector.  
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show DNA made by recombining fragments of DNA from different sources.  
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show DNA-cutting enzymes that can cut both strands of a DNA molecule at a specific nucleotide sequence.  
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show organisms that contains functional recombinant DNA from a different organism.  
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Vector   show
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Gene therapy   show
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show map of the approximately 80 000 genes of 46 human chromosomes that when mapped and sequenced,may provide information on the treatment or cure of genetic disorders.  
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Linkage map   show
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