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AP Biology Chapter 20 - Biotechnology, Campbell 8th ed. Flashcards

Campbell & Reece 8th ed. of AP Biology, 2011-2012

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638906430recombinant DNA2 strands of DNA engineered to mesh together to make a new strand
638906431biotechnologymanipulation of organisms or their components to make useful products
638906432genetic engineeringthe direct manipulation of genes for practical purposes
638906433plasmidcircular DNA that replicates separately from the bacterial chromosome
638906434gene cloningmaking multiple copies of a single gene
638906435restriction enzymesthey snip sugar phosphate backbones to create "sticky ends"
638906436restriction sitethe specific cutting site of a plasmid
638906437restriction fragmenta DNA segment that results from the cutting of a restriction enzyme
638906438sticky endthe end off of a restriction fragment
638906439DNA ligaseglues restriction fragments together
638906440cloning vectorA gene carrier/plasmid that transfers DNA from a foreign cell or test tube to another cell
638906441genomic librarya complete set of plasmid-carrying cell clones, each carrying copies of a particular segment from the initial genome
638906442bacterial artificial chromosome (BAC)another type of vector; allows for easier replication/manipulation as the number of genes is reduced to a smaller size
638906443complementary DNA (cDNA)a complementary, single-stranded, DNA molecule to another mRNA or DNA; composed by mRNA via reverse transcriptase
638906444cDNA librarya collection of cDNAs
638906445nucleic acid hybridizationthe process of detecting a certain gene by adding a radioactive probe composed of complementary nucleotides
638906446nucleic acid probean artificially synthesized nucleotide complement used in nucleic acid hybridization
638906447expression vectorallows a cloned eukaryotic gene to function in a bacterial host; a cloning vector that contains a highly active bacterial promoter upstream of a restriction site where the eukaryotic gene can be inserted into the correct reading frame
638906448yeast artificial chromosome (YAC)essentials of a eukaryotic chromosome (DNA origin of replication, centromere, and 2 telomeres) inserted with foreign DNA to help a eukaryotic gene function
638906449electroporationthe act of sending an electric pulse to a cell in membrane saturated solution to allow DNA to enter
638906450polymerase chain reaction (PCR)the act of amplifying a target DNA sequence; consists of denaturation, cooling with primers, and the DNA pol adding of nucleotides
638906451gel electrophoresisthe process of separating nucleic acids/proteins based on size, electrical charge, and other physical properties
638906452southern blottinga process involving both gel electrophoresis and nucleic acid hybridization to detect a specific nucleotide sequence of a specific gene on DNA
638906453northern blottinga process involving both gel electrophoresis and nucleic acid hybridization to detect a specific nucleotide sequence of a specific gene on mRNA
638906454reverse transcriptase-polymerase chain reaction (RT-PCR)a process using cDNA, PCR, and gel electrophoresis to compare gene expression between samples
638906455in situ hybridizationusage of placing probes in an organism with fluorescent dyes to determine which tissues/cells are expressing certain genes
638906456DNA microarray assaya collection of many small, single-stranded DNA fragments in a glass slide that would ideally represent all genes of an organism
638906457in vitro mutagenesisthe process of determining the function of a gene by disabling it via mutation
638906458RNA interference (RNAi)a synthetic, double-stranded RNA acting as a sequence of a particular gene to block translation of a specific protein
638906459totipotentdescribes a cell that can dedifferentiate
638906460nuclear transplantationthe process of transplanting a nucleus from a differentiated cell into an unfertilized/fertilized egg
638906461pluripotentthe capability of differentiating into different cell types
638906462stem cellan unspecialized cell that can reproduce indefinitely and differentiate into specialized cells of one or more types
638906463single nucleotide polymorphism (SNP)where a single base pair site is varied
638906464restriction fragment length polymorphism (RFLP)an SNP that exists on the restriction site for a particular enzyme making it unrecognizable causing different restriction fragments to show during gel electrophoresis
638906465gene therapyintroducing genes into an afflicted individual for therapeutic purposes
638906466transgenican organism that has genes from another organism of the same or different species
638906467genetic profilean individual's set of unique genetic markers
638906468short tandem repeats (STRs)tandemly repeated 2-5 base sequences in specific regions of the genome
638906469Ti plasmida plasmid of tumor-inducing bacterium that integrates its T DNA into a chromosome of a host plant; used in genetic (plant) engineering)
638906470genetically modified (GM) organismsan organism that has artificially acquired one or more genes from another of the same or different species

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