Week 4 Blanked (says Week 3 But Should Be 4)

TA:ZaraTabi(ztabi@uesdedu) ApPt. OH:Byemail AIM:ztabi06 andPolvploidv CropDomestication of mainly a consequence crops of today's - Domestication

Schmidt BICD 120;Dr. Week 3

varieties ofveggies! traitsgaveusdifferent fordifferent oleracea-selecting Ex.Brassica set ofchromosome

Containing - Polyploidy. Results of inincrease

(flowerc, etc.) seeds, stems, . Plants ploidy aresterile with .Chromosomesunableto-duringmeiosis)non-viab|egametes inotherpartsoftheplant seeds, canuseresources I sincedon'tproduce allocation - Carbon . ex.Sugarbeets (3n) Triploids - Obtaining ) VeryRARE! 1) (4n)gametes of 2)Combination [n+ 2n= 3n] (an)-TWO WAYS; Tetraploids - Obtaining fromchromosomes of created - Tetraploid 1) means byartificial - Canoccur formation withmicrotubule - Poison thatinterferes duringmeiosis 2rr

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(akaTransposons)-The Genes!" Elements PlantTransposable "Jumping (transposing) inthegenome around of Pieces DNA capable of (50-80%) for andis responsible uplargepartofplantgenome - Makes Twodifferent tvoes:

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families orhowbigtheyare- Understand, of transposon allofthedifferenttypes [Youdon'tneedtomemorize withdifferenf varieties s2esandactivities.l AREdifferenttransposon though, thatthere Mechanism Basic elements oftengiveriseto -Transposable and

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families specific fordifferent ofduplication - Amount iscutout,TSDis - WhenTransposon . Provides genetic diversity thatmaybebeneficial orharmful tohost Howareplanbabletosurvive withtransposons thatcanpotentially disruptvitalgenefunction? - Plants movement canhaveactivities that transposon 'Junk" - Often DNA(introns) times, transposons endupin thatdonotcodeforanything! PlantDevelopment & Structure cells) actively Regions of dividing! -Meristems. capable (leaves, flowers) intospecific structures ofdifferentiating . 2 Types: 1)ApicalFound attipsof_ and growth (up Responsible for anddown)foundinALLtypesof plants 2)LateralFoundinthe growth (girth,thickness) for usually foundin - Responsible (woody)plants

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rootsandshoots - PlantVascular Connecting System2 Primarv tissues: Transport : Water& Mineral withhighly cellwallsallowwaterto andadhesion travelviacohesion

: Sugar transport -+ellwallsNOThighly lignified Include

- lnclude celltypes - BothTypesoftissuecreated by

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