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Definition
the process of converting archived information into molecules that actually do things in the cell |
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knock-out/null/loss-of-function alleles |
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Definition
alleles that do not function at all |
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Definition
any technique for picking certain types of mutants out of many randomly generated mutants |
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Definition
carry information out of the nucleus from DNA to the site of protein synthesis |
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Term
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Definition
polymerizes ribonucleotides into strands of RNA |
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Definition
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Definition
the process of copying hereditary information in DNA to RNA |
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Definition
the process of using the information in nucleic acids to synthesize proteins |
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Term
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Definition
synthesizes a DNA version of the RNA genes; information flows from RNA to DNA |
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Term
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Definition
the rules that specify the relationship between a sequence of nucleotides in DNA or RNA & the sequence of amino acids in a protein |
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Definition
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Term
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Definition
a group of three bases that specifies a particular amino acid |
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Definition
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Term
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Definition
signals that protein synthesis should begin at that point on the mRNA molecule |
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Term
stop codons/UAA, UAG, UGA |
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Definition
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Term
5 important properties of the genetic code |
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Definition
1. redundant 2. unambiguous 3. non-overlapping 4. nearly universal 5. conservative |
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Term
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Definition
any permanent change in an organism's DNA |
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Term
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Definition
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Term
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Definition
point mutations that cause a change in the amino acid specified by the codon |
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Term
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Definition
a point mutation that does not change the amino acid sequence of the gene product |
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Term
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Definition
a single addition or deletion mutation |
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Term
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Definition
a codon that specifies an amino acid is changed by mutation to one that specifies a stop codon |
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Term
3 categories of mutations |
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Definition
1. beneficial 2. neutral 3. deleterious |
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Term
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Definition
segments of chromosomes are flipped & rejoined |
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Term
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Definition
segments of chromosomes become attached to a different chromosome |
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Term
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Definition
when a segment of a chromosome is lost |
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Term
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Definition
when additional copies of a segment are present |
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Term
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Definition
the complete set of chromosomes in a cell |
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