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Exam 3 Biology 1010 – SLCC Questions and Answers
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Exam 3: Biology 1010 – SLCC Questionsand Answers
How iimany iichromosomes iido iihumans iihave? ii- iiAnswers ii-46 ii(23 iipairs)
What iiis iian iiautosome? ii- iiAnswers ii-Any iichromosome iithat iiis iinot iia iisex
iichromosome
How iimany iiautosomes iido iihumans iihave? ii- iiAnswers ii-22 iipairs ii(44)
What iiare iisex iichromosomes? ii- iiAnswers ii-chromosomes iithat iidetermine iithe iisex iiof
iian iiorganism
How iimany iisex iichromosomes iido iihumans iihave? ii- iiAnswers ii-1 iipair ii(2
iichromosomes)
What iiis iia iidiploid iicell? ii- iiAnswers ii-A iicell iiwith iitwo iisets iiof iichromosomes ii(2n)
iiex. ii46 iichromosomes
What iiis iia iihaploid iicell? ii- iiAnswers ii-a iicell iithat iicontains iione iiset iiof iichromosomes
ii(n)
iiex. ii23 iichromosomes
What iiis iia iihomologues? ii- iiAnswers ii-members iiof iia iipair iiof iichromosomes
What iiis iia iihomologous iichromosome? ii- iiAnswers ii-one iiof iitwo iipaired iichromosomes,
iione iifrom iieach iiparent, iithat iicarries iigenes iifor iia iispecific iitrait iiat iithe iisame iilocation
What iiis iithe iicell iicycle? ii- iiAnswers ii-an iiorderly iiset iiof iistages iithat iitake iiplace
iibetween iithe iitime iia iieukaryotic iicell iidivides iiand iithe iitime iithe iiresulting iidaughter
iicells iialso iidivide ii(mitosis)
What iihappens iibefore iithe iinext iidivision? ii(mitosis) ii- iiAnswers ii-the iicell iigrows iilarger,
iinumber iiof iiorganelles iidouble, iiDNA iiis iireplicated
What iiare iithe iitwo iimajor iistages iiof iithe iicell iicycle? ii(mitosis) ii- iiAnswers ii-Interphase
ii(includes iiseveral iistages) ii- iicell iigrowing
,Mitotic iistage ii(includes iimitosis iiand iicytokinesis) ii- iidivision iiof iithe iinucleus
Most iiof iithe iicell iicycle iiis iispent iiin iiwhat iistage? ii(mitosis) ii- iiAnswers ii-Interphase
ii(growing iistage), iibut iivaries iiby iicell iitype
ex. iiskill iicells iiwill iistay iiin iithis iiphase iia iilot, iinerve iicells iiwill iinot
How iilong iidoes iiinterphase iilast iifor iiadult iimammalian iicells? ii(mitosis) ii- iiAnswers ii-
about ii20 iihours, iiwhich iiis ii90% iiof iithe iicell iicycle
What iiare iithe iithree iistages iiof iiinterphase? ii(mitosis) ii- iiAnswers ii-G1, iiS, iiG2
What iihappens iiduring iiG1 iistage? ii(mitosis) ii- iiAnswers ii-the iicell iigrows iiand
iisynthesizes iimany iienzymes iiand iinutrients iifor iilater iiduring iiDNA iireplication
What iiis iieach iidouble iihelix iicalled? ii- iiAnswers ii-chromatid
What iiare iitwo iiidentical iichromatids iicalled? ii- iiAnswers ii-sister iichromatids
How iimany iichromosomes iienter iiS iiphase? ii(mitosis) ii- iiAnswers ii-1 iichromatid iieach
How iimany iichromosomes iileave iiS iiphase? ii(mitosis) ii- iiAnswers ii-2 iiidentical
iichromatids ii(sister iichromatids) iieach
What iihappens iiduring iiG2 iistage? ii(mitosis) ii- iiAnswers ii-cell iisynthesizes iiproteins
ii(happens iibetween iiDNA iireplication iiand iionset iiof iimitosis)
What iistage iidoes iithe iicell iigoing iiinto iiafter iiinterphase? ii(mitosis) ii- iiAnswers ii-M iistage
What iistages iigo iiunder iithe iiM iistage? ii(mitosis) ii- iiAnswers ii-mitosis ii(nuclear iidivision)
iiand iicytokinesis ii(division iiof iithe iicytoplasm)
During iimitosis, iidaughter iichromosomes iiare iidistributed iiby iiwhat? ii- iiAnswers ii-mitotic
iispindle
How iimany iicheckpoints iiare iithere iiin iithe iicell iicycle? ii- iiAnswers ii-three
What iiare iicyclins? ii- iiAnswers ii-signaling iiproteins iiused iiat iicheckpoints iithat iiincrease
iiand iidecrease iias iithe iicell iicycle iicontinues
Where iiare iithe iicheckpoints iiin iithe iicell iicycle? ii(mitosis) ii- iiAnswers ii-G1 iistage, iiG2
iistage, iiand iiM iistage
What iiis iia iisignal? ii- iiAnswers ii-a iimolecule iithat iiinfluences iithe iiactivities iiof iia iicell
What iiis iithe iiprimary iicheckpoint iiof iithe iicell iicycle? ii(mitosis) ii- iiAnswers ii-G1
iicheckpoint
, What iiis iithe iisignaling iiprotein iiin iimammalian iicells? ii- iiAnswers ii-p53 ii(stops iithe iicycle
iiat iithe iiG1 iicheckpoint iiwhen iiDNA iiis iidamaged)
What iiis iiapoptosis? ii- iiAnswers ii-programmed iicell iideath
What iiprotein iiis iiresponsible iifor iiinterpreting iigrowth iisignals iiand iialso iinutrient
iiavailability iisignals? ii(mitosis) ii- iiAnswers ii-RB ii(retinoblastoma)
What iicancer iioccurs iiwhen iithe iiRB iigene iiundergoes iia iimutation? ii- iiAnswers ii-cancer
iiof iithe iiretina
What iidoes iithe iicheckpoint iiat iithe iiM iistage iicheck iifor? ii(mitosis) ii- iiAnswers ii-Make
iisure iithe iichromosomes iiline iiup iitogether iibefore iisplitting iiinto iitwo iiduring iimetaphase
What iiare iicaspases? ii- iiAnswers ii-enzymes iithat iibring iiabout iiapoptosis ii(they iiare
iialso iipresent iiin iithe iicell iiwaiting iifor iiP53 iito iitell iithem iito iiattack)
What iiis iia iisomatic iicell? ii- iiAnswers ii-body iicell ii(any iicell iiexcept iisex iicells)
What iiare iihistones? ii- iiAnswers ii-proteins iithat iicondense iiDNA iito iimake iiit iimore
iiorganized
Where iiis iithe iiDNA iilocated iiin iia iieukaryotic iicell iiwhen iiit iiis iinot iiundergoing iidivision?
ii- iiAnswers ii-within iichromatin
What iiis iiheterochromatin? ii- iiAnswers ii-Permanently iiturned iioff iicells ii(frequently
iitranscribed iiregions)
What iiis iieuchromatin? ii- iiAnswers ii-cells iithat iiare iiturned iion ii(highly iicondensed)
What iiare iithe iitwo iisides iiof iia iidiploid ii(2n) iicell? ii(mitosis) ii- iiAnswers ii-mom iiand iidad
What iiis iithe iionly iithing iithat iihas iithe iihaploid iinumber iiof iichromosomes? ii- iiAnswers ii-
sperm iiand iieggs
What iiare iicentrosomes? ii- iiAnswers ii-microtubule iiorganizing iicenter iithat iiorganize iithe
iimitotic iispindle, iiwhich iicontains iimany iifibers, iieach iiof iiwhich iiis iicomposed iiof iia
iibundle iiof iimicrotubules
What iiis iithe iidividing iicell iicalled? ii(mitosis) ii- iiAnswers ii-parent iicell
What iiis iithe iiresulting iicells iiafter iithe iiparent iicell iiis iidivided? ii- iiAnswers ii-daughter
iicells
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