BSC 108 Exam 3 Kennedy With Correct
Answers
The cstructure cof ca cstrand cof cDNA. c- ccorrect canswers✔✔it cis ca cdouble chelix, clike ca
ctwisted cladder.
the cladder crings care cnucleotide csubunits cand cthey chave ca ccovalent cbond cto cthe
csugar cphosphate cbackbone c(made cof cdeoxyribose cand ca cphosphate cgroup)
What care cthe cnucleotide csubunits? c- ccorrect canswers✔✔adenine, cguanine,
ccytosine, cand cthymine
How care cthe csubunits cheld ctogether? c- ccorrect canswers✔✔through ca chydrogen
cbond
What care cthe cnucleotide csubunits ccompliments? c- ccorrect canswers✔✔Adenine cand
cthymine c
cytosine cand cguanine
How cdoes cDNA creplicate? c- ccorrect canswers✔✔the cparent cstrand cbreaks coff cinto
ctwo cand cthen cenzymes c(DNA cpolymerases) cattach cthe ccomplimentary cnucleotide
cto ceach cside, ccreating ctwo cseparate cdaughter cstrands
What cis cthe clocation csite cof cwhere cDNA creplication cbegins con cthe cdouble chelix
ccalled? c- ccorrect canswers✔✔the corigins cof creplication
What cis ccreated cwhen creplication cproceeds cin cboth cdirections? c- ccorrect
canswers✔✔replication cbubbles, cthey care ccreated cbecause cat cthe corigin cthe
creplication cprocess cproceeds cin cother cdirections, ccreating ca cbubble.
What cis cthe creplication cforks? c- ccorrect canswers✔✔It cis cthe clocation cwhere cthe
cparent ccells cis cseparating cand cthe ccomplimentary cnucleotide cis cbeing cadded
ccreating cthe ctwo cnew cstrands
How cdoes cDNA cdetermine cspecific ctraits c(phenotypes)? c- ccorrect
canswers✔✔Phenotypes carise cfrom cthe cactions cof ca cwide cvariety cof cproteins. cTo
cget cthese cproteins cthis cis cwhat chappens. cDNA ctransfers cgenetic cinformation
cthrough ctranscription cto cRNA. cThen cthrough ctranslation cgenetic cinfo cis ctransferred
cfrom cRNA cinto ca cpolypeptide c(protein cstrand)
What cis cthe cstructure cof cRNA? c- ccorrect canswers✔✔It cis ca csingle-stranded cnucleic
cacid.
, it cis cthe csame cas cDNA cexcept cit cuses cribose cinstead cof cdeoxyribose cin cthe csugar
cphosphate cbackbone cand cit cuses curacil cinstead cof cthymine
tRNA c- ccorrect canswers✔✔transfer cRNA: ctranslation cof cthe cgenetic cmessage
ccarried cin cthe cmRNA cinto cthe camino cacid clanguage cof cproteins c(converts cthe
cthree-letter cwords, ccodons, cof cnucleic cacids cto cthe camino cacid cwords cof cproteins)
What cis cthe cfunction cof cmRNA? c- ccorrect canswers✔✔Messenger cmolecules ccarry
cthe ccoding csequences cfor cprotein csynthesis cand care ccalled ctranscripts.
rRNA c- ccorrect canswers✔✔ribsosomal cRNA
makes cup cribosomes cwhich care cthe corganelles cin cthe ccytoplasm cthat ccoordinate
cthe cfunctioning cof cmRNA cand ctRNA cand cactually cmake cpolypeptides
What ctwo cprocesses cdo cgenes ccode cfor cspecific cproteins? c- ccorrect
canswers✔✔transcription cand ctranslation
What cis ctranscription cand cwhere cdoes cit ctake cplace? c- ccorrect
canswers✔✔Transcription cis cthe csynthesis cof cmRNA cunder cthe cdirection cof cDNA,
cnucleus
What cis ctranslation cand cwhere cdoes cit ctake cplace? c- ccorrect canswers✔✔It cis cthe
csynthesis cof ca cpolypeptide c(later cbecomes ca cprotein) cunder cthe cdirection cof
cmRNA
occurs con cribosomes cin cthe ccytoplasm
What cis cthe cstructure cof ctRNA? c- ccorrect canswers✔✔It cis cmade cof ca csingle cstrand
cof cRNA. cconsisting cof cabout c80 cnucleotides. cChain ctwists cand cfolds cupon citself,
cforming cseveral cdouble-stranded cregions cin cwhich cshort cstretches cof cRNA cbase-
pair cwith cother cstretches. cone cend chas ca cspecial ctriplet cof cbases ccalled
canticodons. cit cis ccomplementary cto ca ccodon ctriplet con cmRNA. con cthe cother cside
cthere cis can camino cacid cattachment csite.
What cis ca cmutation? c- ccorrect canswers✔✔It cis ca cchange cin cthe cgenetic cmaterial
c(the cnucleotide csequence) cof ca ccell's cDNA.
What cis ca cpoint cmutation? c- ccorrect canswers✔✔It cis ca cchange cin conce cbase cpair
cof ca cgene.
What cis ca cplasmid? c- ccorrect canswers✔✔A csmall cring cof cself-replicating cDNA
cseparate cfrom cthe clarger cchromosomes. cPlasmids care cmost cfrequently cderived
cfrom cbacteria. cthey ccan ccarry cany cgene cand care cpassed cfrom cgeneration cto
cgeneration. cmaking cthem cperfect cfor cgenetic ccloning.
What cis ca cgenetically cmodified corganism? c- ccorrect canswers✔✔It cis can corganism
cthat chas cacquired cone cor cmore cgenes cby cartificial cmeans.
Answers
The cstructure cof ca cstrand cof cDNA. c- ccorrect canswers✔✔it cis ca cdouble chelix, clike ca
ctwisted cladder.
the cladder crings care cnucleotide csubunits cand cthey chave ca ccovalent cbond cto cthe
csugar cphosphate cbackbone c(made cof cdeoxyribose cand ca cphosphate cgroup)
What care cthe cnucleotide csubunits? c- ccorrect canswers✔✔adenine, cguanine,
ccytosine, cand cthymine
How care cthe csubunits cheld ctogether? c- ccorrect canswers✔✔through ca chydrogen
cbond
What care cthe cnucleotide csubunits ccompliments? c- ccorrect canswers✔✔Adenine cand
cthymine c
cytosine cand cguanine
How cdoes cDNA creplicate? c- ccorrect canswers✔✔the cparent cstrand cbreaks coff cinto
ctwo cand cthen cenzymes c(DNA cpolymerases) cattach cthe ccomplimentary cnucleotide
cto ceach cside, ccreating ctwo cseparate cdaughter cstrands
What cis cthe clocation csite cof cwhere cDNA creplication cbegins con cthe cdouble chelix
ccalled? c- ccorrect canswers✔✔the corigins cof creplication
What cis ccreated cwhen creplication cproceeds cin cboth cdirections? c- ccorrect
canswers✔✔replication cbubbles, cthey care ccreated cbecause cat cthe corigin cthe
creplication cprocess cproceeds cin cother cdirections, ccreating ca cbubble.
What cis cthe creplication cforks? c- ccorrect canswers✔✔It cis cthe clocation cwhere cthe
cparent ccells cis cseparating cand cthe ccomplimentary cnucleotide cis cbeing cadded
ccreating cthe ctwo cnew cstrands
How cdoes cDNA cdetermine cspecific ctraits c(phenotypes)? c- ccorrect
canswers✔✔Phenotypes carise cfrom cthe cactions cof ca cwide cvariety cof cproteins. cTo
cget cthese cproteins cthis cis cwhat chappens. cDNA ctransfers cgenetic cinformation
cthrough ctranscription cto cRNA. cThen cthrough ctranslation cgenetic cinfo cis ctransferred
cfrom cRNA cinto ca cpolypeptide c(protein cstrand)
What cis cthe cstructure cof cRNA? c- ccorrect canswers✔✔It cis ca csingle-stranded cnucleic
cacid.
, it cis cthe csame cas cDNA cexcept cit cuses cribose cinstead cof cdeoxyribose cin cthe csugar
cphosphate cbackbone cand cit cuses curacil cinstead cof cthymine
tRNA c- ccorrect canswers✔✔transfer cRNA: ctranslation cof cthe cgenetic cmessage
ccarried cin cthe cmRNA cinto cthe camino cacid clanguage cof cproteins c(converts cthe
cthree-letter cwords, ccodons, cof cnucleic cacids cto cthe camino cacid cwords cof cproteins)
What cis cthe cfunction cof cmRNA? c- ccorrect canswers✔✔Messenger cmolecules ccarry
cthe ccoding csequences cfor cprotein csynthesis cand care ccalled ctranscripts.
rRNA c- ccorrect canswers✔✔ribsosomal cRNA
makes cup cribosomes cwhich care cthe corganelles cin cthe ccytoplasm cthat ccoordinate
cthe cfunctioning cof cmRNA cand ctRNA cand cactually cmake cpolypeptides
What ctwo cprocesses cdo cgenes ccode cfor cspecific cproteins? c- ccorrect
canswers✔✔transcription cand ctranslation
What cis ctranscription cand cwhere cdoes cit ctake cplace? c- ccorrect
canswers✔✔Transcription cis cthe csynthesis cof cmRNA cunder cthe cdirection cof cDNA,
cnucleus
What cis ctranslation cand cwhere cdoes cit ctake cplace? c- ccorrect canswers✔✔It cis cthe
csynthesis cof ca cpolypeptide c(later cbecomes ca cprotein) cunder cthe cdirection cof
cmRNA
occurs con cribosomes cin cthe ccytoplasm
What cis cthe cstructure cof ctRNA? c- ccorrect canswers✔✔It cis cmade cof ca csingle cstrand
cof cRNA. cconsisting cof cabout c80 cnucleotides. cChain ctwists cand cfolds cupon citself,
cforming cseveral cdouble-stranded cregions cin cwhich cshort cstretches cof cRNA cbase-
pair cwith cother cstretches. cone cend chas ca cspecial ctriplet cof cbases ccalled
canticodons. cit cis ccomplementary cto ca ccodon ctriplet con cmRNA. con cthe cother cside
cthere cis can camino cacid cattachment csite.
What cis ca cmutation? c- ccorrect canswers✔✔It cis ca cchange cin cthe cgenetic cmaterial
c(the cnucleotide csequence) cof ca ccell's cDNA.
What cis ca cpoint cmutation? c- ccorrect canswers✔✔It cis ca cchange cin conce cbase cpair
cof ca cgene.
What cis ca cplasmid? c- ccorrect canswers✔✔A csmall cring cof cself-replicating cDNA
cseparate cfrom cthe clarger cchromosomes. cPlasmids care cmost cfrequently cderived
cfrom cbacteria. cthey ccan ccarry cany cgene cand care cpassed cfrom cgeneration cto
cgeneration. cmaking cthem cperfect cfor cgenetic ccloning.
What cis ca cgenetically cmodified corganism? c- ccorrect canswers✔✔It cis can corganism
cthat chas cacquired cone cor cmore cgenes cby cartificial cmeans.
