Study Guides (238,094)
United States (119,675)
BIOL 2153 (24)
All (24)

Exam 1 DNA Notes W Book Notes In Blue (97% in the course

19 Pages
Unlock Document

Louisiana State University
Biological Sciences
BIOL 2153

Geneticsscience of heredityFocuses of properties transmitted from parent to offspringGregor Mendel1800sCrossed pea plantsHad easily observable characteristicsWork was published bt not recognized in his timePaul Berg1972Constructed the first recombinant DNA mlclHerbert Boyer Stanley Cohen1973First to replicate a recombinant DNA mlclKary Mullis1986Created the polymerase chain rxn PCRoAmplified specific segments of DNAHypotheticodeductive method of investigationOne makes observationsforms hypothesisto explain observationsmake experimental preductions based on hypothesistest the predictionso testing provides new observationsCan ultimately lead to a theoryBarbara McClintockDiscovered transposonsHypothesized that color patches on corn kernels was the result of movement of DNA segments AREAS OF GENETICS NEED TO KNOWMlclar GeneticsMolecular GeneticsoDeals w mlclar structurefxn of genesoEx Mlclar events in gene control of cell division Regulation of gene expression of entire genomeoGenomic analysis Transmission GeneticsTransmission GeneticsAka classical geneticsHow genes transmitted thru generationsHow genes recombine exchange bw chromosomesEx analyzing trait transmission in human pedigree crosses of experimental orgs Popl GeneticsPopl GeneticsHeredity in groups of individuals of traits determined by few genesEx analyzing frequency of diseasecausing genes Quantitative GeneticsQuantitative Geneticsheredity in groups of individuals of traits determined by many genesEx fruit weight and crop yield in crop plants Good model organism bcShort life cycleProduce a lot of offspringHas genetic variation oIn the popl already OR can be introduced using a chemicaoUsed to understand gene structure and fxnoOrganism must have short life cyclemany generations in short timeoCan obtain data readily over many generationsoMating must produce many offspringoMust be easy to handleoGenetic variation must existbe created in poplcan introduce mutationoex Saccharomyces cerevisiae Drosophilia melanogaster nematode worm mustard weed mice humansTYPES OF RESEARCH1BasicExp Done to gain understanding of fundamental phenomena whether or not info leads to immediate resultsResponsible for most facts in booksEx prokaryoticeukaryotic gene expression by use of model orgsUsed largely to fuel more basic research2AppliedExperiments done to overcome specific problems or exploit discoveriesHas improved growing of produce genetic diseasesRecombinant DNA technologyProcedures that splice DNA from one org into another orgs DNA fro replication purposesHelps basicapplied researchEx helps make diseaseresistant cropsGenetic mapsGene Locus pl lociposition of a geneDone to tell if related genes are linked to same chromosomesCan be used to clone sequencesDistances bw genes on chromosome calculated by counting frequency of recombinationo time among progeny that the origina parents exchanged Map unitunit of genetic distanceCellsNuclear envelope o dbl membrane separating nucleus from rest of cell oPermeable w pores 2080 nmmaterials move from nucleus to the cytoplasmCentrioleoAka basal bodyoIn almost all animal cells bt not plantsoExist in pairs in center of centrosome
More Less

Related notes for BIOL 2153

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.