PORTAGE BIOCHEM MODULE 6 Q AND A

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PORTAGE BIOCHEM MODULE 6 Q AND A
lOMoAR cPSD|




Whatniisnithenidifferencenibetweennianinucleosideniandninucleotide?ni-nianswer--
Aninucleosideniisniformednifromnithenicovalentnibondingniofnianibaseni(purineniornipyrimidine)nitonieitherniriboseni(RNA)
niorni2-deoxyriboseni(DNA).niNucleotidesniarenibuiltnifromnianinitrogen-

containingniorganicnibase,nianimonosaccharide,niandniphosphate.

Whatnicharacteristicnimakesnipurinesniandnipyrimidineniheterocyclic?ni-nianswer--
Eachnihasnianiringniwithninitrogenniinnitheniringniinsteadniofniallnicarbonniatomsniinnitheniring.

Isnithisnimoleculeniriboseniorni2-deoxyribose?
niBrieflyniexplainniwhatnistructuralniinformationniwasniusednitonideterminenithis.ni-nianswer--

Ribose.niThisnimoleculenicontainsnianni-OHnionnicarbonni2.ni2-deoxyribosenihasnianni-
Hniatomnionnithenisecondnicarbon.

Isnithenifollowingnianipyrimidineniornipurine?niProvidenitheninameniandnione-letternisymbol.ni-nianswer--
Pyrimidine.niItniisnithymineni(T).

Whatniisnithenidifferencenibetweennithymineniandniuracil?ni-nianswer--
Thesenitwonibasesnidiffernibynianimethylnigroup.niThyminenihasnianniextranimethylnigroupnionnitheniring.

Fromnithenicourseniandnimoduleniinformation,niwhereniinnianieukaryoticniorniprokaryoticnicell,niisnitheniDNAnilocated?
niHowniaboutnitheniRNA?ni-nianswer--

DNAniisnilocatedniinnitheninucleusniofnianieukaryoticnicellniornitheninucleoidniofnianiprokaryoticnicell.niRNAniisnifoundniinnit
heninucleus,nionnitheniribosome,niandniinniothernipartsniofnithenicell.

WhichniDNAniandniRNAnibasesnicontainnianicarbonylnigroup?ni-nianswer--
Guanine,nicytosine,nithymine,niandniuracilniallnicontainniC=Onigroupniattachednitonithenirings.niAdenineniisnithenionlynib
asenithatnidoesninot.

WhatniconstitutesnithenibackboneniofniDNA?ni-nianswer--
InniDNA,nithisniconsistsniofnithenialternatingnideoxyriboseniandniphosphatenigroupsnilinkednitogethernithroughnicoval
entnibonds.

HownimanynihydrogennibondsniformnibetweenniAniandniT?ni-nianswer--
Twonihydrogennibondsniareniformednibetweennithesenitwonibases.niGniandniCniformnithreeniH-bonds.

Whichninucleicniacidniisnisingle-stranded?ni-nianswer--
RNA.niRNAniformsnisinglenistrands.ni(Particularly,nithisniwasninotedniinnithisnimodulenifornitRNA.)niDNAniformsnianidou
blenihelix.

WhatniinteractionsnistabilizenitheniDNAnidoublenihelix?ni-nianswer--
Hydrogennibondsnistabilizenithenihelix.niEachniATnipairniandniformnitwonihydrogennibonds,niandnieachniGCnipairniform
snithreenihydrogensnithatnistabilizenithenihelix,nipermittingniitnitonimaintainnithisnishape.

WhatnitypeniofniRNAnihasnianisequencenithatniisnicomplementarynitoniDNA?ni-nianswer--
mRNAniisnicomplementarynisonithatniitnicannitransmitnitheniinformationnitonitheniribosome.

Whichnihasnithenilargestnimolecularniweightnichains:nimRNA,nitRNA,niornirRNA?ni-nianswer--
rRNA.niThesenimoleculesnimakeniupniribosomes.

WhatnistructuralniformsniofniDNAnihavenianiright-handednihelix?niWhichniformnihasnianileft-handednihelix?ni-nianswer--
TheniA-niandniB-formsniareniright-handed,niwhilenitheniZ-formniisnileft-handed.

WhatnifunctionnidoesnicAMPniperformniinnicells?ni-nianswer--
DownloadedgibygiAnnagiMainagi(annamurugijoe@g