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UCI Bio 93 Final Exam Questions and Answers
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UCI Bio 93 Final Exam Questions and Answers
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UCI Bio 93 Final Exam Questions andAnswers
What iiare iithe iifour iimost iicommon iielements iiin iiliving iimatter? ii- iiAnswers ii-Hydrogen,
iiOxygen, iiNitrogen, iiand iiCarbon ii--make iiup ii96% iiof iiall iiliving iimatter.
Properties iiof iiAcids ii- iiAnswers ii-Donate iiH+ iito iia iisolution, iiaccept iielectrons, iiand
iihave iia iipH iiof ii<7
What iihappens iiin iithe iiS iiphase iiof iithe iicell iicycle? ii- iiAnswers ii-DNA iiSynthesis
What iihappens iiin iithe iiG1 iiphase iiof iithe iicell iicycle? ii- iiAnswers ii-Growth ii-- iicell
iicontents iiare iiduplicated.
What iihappens iiin iithe iiG2 iiphase iiof iithe iicell iicycle? ii- iiAnswers ii-More iigrowth iiand
iipreparation iifor iidivision.
What iihappens iiin iithe iiM iiphase iiof iithe iicell iicycle? ii- iiAnswers ii-Mitosis ii(and
iicytokinesis ii-- iidivision iiof iithe iicell).
What iiare iithe iisubphases iiof iimitosis? ii- iiAnswers ii-Prophase, iiPre-metaphase,
iiMetaphase, iiAnaphase, iiand iiTelophase.
How iimany iicheckpoints iiare iithere iiin iithe iicell iicycle? ii- iiAnswers ii-3 ii-- iiG1 iicheckpoint,
iiG2 iicheckpoint, iiand iithe iiM iicheckpoint.
What iiis iia iiKaryotype? ii- iiAnswers ii-A iilayout iiof iiMetaphase iichromosomes iimatched
iiwith iitheir iihomologous iipairs.
What iiis iia iidiploid iicell? ii- iiAnswers ii-A iicell iiwith ii46 iichromosomes ii-- iisomatic iicells.
What iiis iia iihaploid iicell? ii- iiAnswers ii-A iicell iiwith ii23 iichromosomes ii-- iisex iicells.
What iidoes iithe iimesoderm iigive iirise iito? ii- iiAnswers ii-the iinotochord ii(similar iito iia
iispinal iichord).
What iidoes iithe iiendoderm iigive iirise iito? ii- iiAnswers ii-the iidigestive iitract.
,What iidoes iithe iiectoderm iigive iirise iito? ii- iiAnswers ii-the iinervous iisystem
ii(brain)/neural iiplate.
If ii2n ii= ii18, iihow iimany iichromosomes iicome iifrom iithe iimother? ii- iiAnswers ii-9 ii-- iihalf
iifrom iimom iiand iihalf iifrom iidad
Meiosis ii- iiAnswers ii-Meiosis iiis iia iispecialized iitype iiof iicell iidivision iithat iireduces iithe
iichromosome iinumber iiby iihalf, iicreating iifour iihaploid iicells, iieach iigenetically iidistinct
iifrom iithe iiparent iicell iithat iigave iirise iito iithem.
What iitwo iistructures iidoes iithe iichiasma iiconnect? ii- iiAnswers ii-Non-sister iichromatids.
What iiare iithe iisteps iiof iimeiosis? ii- iiAnswers ii-Prophase iiI, iiMetaphase iiI, iiAnaphase iiI,
iiTelophase iiI ii& iicytokinesis ii(then iia iisecond iiset iiof iiphases)
What iidoes iimeiosis ii1 iideal iiwith? ii- iiAnswers ii-homologous iichromosomes.
What iihappens iiin iiprophase ii1? ii- iiAnswers ii-The iichromosomes iicondense, iithe
iinuclear iienvelope iibreaks iidown, iichromosomes iicross iiover, iiand iimeiotic iispindle
iiforms.
What iihappens iiin iimetaphase ii1? ii- iiAnswers ii-the iipairs iiof iihomologous iichromosomes
iiare iinow iitightly iicondensed iiand iicoiled iiand iibecome iiarranged iion iithe iimetaphase
iiplate.
What iihappens iiin iianaphase ii1? ii- iiAnswers ii-the iipairs iiof iichromosomes iiare iipulled
iiapart iiby iithe iispindle iifibers ii(microtubules).
What iihappens iiin iiTelophase ii1 iiand iicytokinesis? ii- iiAnswers ii-The iihomologous
iichromosome iipairs iicomplete iitheir iimigration iito iithe iitwo iipoles iias iia iiresult iiof iithe
iiaction iiof iithe iispindle. iiNow iia iihaploid iiset iiof iichromosomes iiis iiat iieach iipole, iiwith
iieach iichromosome iistill iihaving iitwo iichromatids. iiA iinuclear iienvelope iireforms iiaround
iieach iichromosome iiset, iithe iispindle iidisappears, iiand iicytokinesis iifollows.
What iihappens iiduring iimeiosis ii2? ii- iiAnswers ii-sister iichromatids iiseparate.
What iihappens iiin iiprophase ii2 iiof iimeiosis? ii- iiAnswers ii-A iinew iispindle iiforms iiaround
iithe iichromosomes.
What iihappens iiin iimetaphase ii2 iiof iimeiosis? ii- iiAnswers ii-Metaphase ii2 iichromosomes
iiline iiup iiat iithe iiequator.
What iihappens iiin iianaphase ii2 iiof iimeiosis? ii- iiAnswers ii-Centromeres iidivide
iichromatids iimove iito iiopposite iipoles iiof iithe iicells.
, What iihappens iiduring iitelophase ii2 iiof iimeiosis? ii- iiAnswers ii-A iinuclear iienvelope
iiforms iiaround iieach iiset iiof iichromosomes iiand iithe iicytoplasm iidivides.
What iimakes iimeiosis iia iiunique iiform iiof iicell iidivision ii- iiAnswers ii-Synapsis iiand
iicrossing iiover ii-- iioccurs iiin iiprophase ii1, iipairing iiup iiof iihomologous iichromosomes,
iihomologous iichromosomes iicross iiover iiand iiexchange iicorresponding iigenetic
iiinformation ii(the iiDNA iiexchanged iicontain iithe iisame iigenes, iibut iimay iihave iidifferent
iialleles).
How iidoes iimeiosis iiincrease iigenetic iivariability? ii- iiAnswers ii-Independent iiassortment
ii(meiosis ii1 ii-- iihomologous iichromosomes iiseparate iiindependently), iicrossing iiover
ii(genetic iirecombination, iiprophase ii1), iiand iirandom iifertilization ii(any iiegg iican iijoin
iiwith iiany iisperm ii-- iimost iieffective iiway iito iiobtain iigenetic iivariability).
What iiis iithe iilaw iiof iisegregation? ii- iiAnswers ii-Alleles iicoding iifor iithe iisame iitrait
iiseparate iiindependently iiduring iigamete iiformation.
What iiis iinon-disjunction? ii- iiAnswers ii-When iihomologous iichromosomes iior iisister
iichromatids iido iinot iiseparate iiproperly.
What iiis iia iicharacter? ii- iiAnswers ii-An iiobservable iiheritable iifeature iithat iimay iivary
iiamong iiindividuals. iiEx: iiflower iicolor.
What iiis iia iitrait? ii- iiAnswers ii-One iiof iitwo iior iimore iidetectable iivariants iiin iia iigenetic
iicharacter. iiEx: iipurple iiflower iicolor/white iiflower iicolor.
What iidoes iithe iiblending iitheory iistate? iiIs iithis iitrue? ii- iiAnswers ii-The iioffspring iiis iia
iiblend iiof iiboth iiparents ii(ex: iia iitall iimom iigiraffe ii+ iia iishort iidad iigiraffe ii= iia iimedium
iiheight iigiraffe). iiThis iiis iinot iitrue iibecause iiif iiso, iievery iisingle iioffspring iiwould iilook
iithe iisame.
What iidoes iiparticulate iiinheritance iistate? iiIs iithis iitrue? ii- iiAnswers ii-Different iitraits
iiare iiinherited iiin iiseparate iidistinct iiunits ii(genes) ii(ex: iiF1 iiand iiF2 iigenerations). iiThis
iiis iialways iitrue iibecause iiof iinot iievery iioffspring iilooks iithe iiexact iisame ii(has iithe
iiexact iisame iigenetics).
What iiis iian iiallele? ii- iiAnswers ii-An iialternate iiform iiof iia iigene ii(ex: iithe iigene iithat
iidetermines iihair iicolor).
What iidoes iithe iiLaw iiof iiSegregation iistate? ii- iiAnswers ii-The iiLaw iiof iiSegregation
iistates iithat iitwo iialleles iiin iia iipair iisegregate iiinto iidifferent iigametes. ii(this iideals iiwith
iiseparation iiof iihomologous iipairs iiin iiMeiosis ii1 iiproducing iihaploid iidaughter iicells
iiafter iiMeiosis ii1).
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