Examl 2:l BIOl 205/l BIO205l (Latestl 2025/l
2026l Update)l Microbiologyl Guide|l Questionsl &l Answers|l Gradel A|l 100%l Correctl (Verifiedl Solutions)-l GCU
Q:l Helicases
Answer:
unzipl DNAl strands
Q:l Primases
Answer:
synthesizel shortl RNAl segmentsl calledl primers,l whichl canl thenl bel extendedl duringl DNAl replication.
Q:l RNAl primers
Answer:
shortl regionsl ofl RNA
Q:l leadingl strand
Answer:
synthesizedl continuously
Q:l laggingl strand
Answer:
synthesizedl discontinuouslyl producingl Okazakil fragments
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Q:l Whatl doesl DNAl ligasel do?
Answer:
formsl covalentl bondsl tol seall thel fragments
Q:l Whatl arel thel 3l typesl ofl RNAl requiredl forl genel expression
Answer:
mRNA rRNA tRNA
Q:l mRNA
Answer:
getsl messagel froml DNA
Q:l rRNA
Answer:
providesl sitel forl translationl ofl messagel inl ribosomes
Q:l tRNA
Answer:
translator
Q:l Transcription
Answer:
RNAl polymerasel makesl single-strandl RNAl usingl DNAl asl al template
Q:l Whatl isl RNAl polymerase
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Answer:
Thel enzymel thatl makesl RNAl froml DNA.
Q:l Wherel doesl thel regionl ofl transcriptionl begin?
Answer:
promoter
Q:l Wherel doesl transcriptionl stop?
Answer:
terminatorl sequence
Q:l Whatl isl thel startl codon?
Answer:
AUGl (codesl forl methionine)
Q:l Whatl arel stopl codonsl (nonsensel codons)?
Answer:
signall endl ofl translation dol notl codel forl anyl aminol acidsl UAA,l UAG,l UGA
Q:l Wherel isl thel sightl ofl translation?
Answer:
ribosomes
Q:l Ifl there'sl 10l codonsl howl manyl aminol acids?
Answer:
9l aminol acids
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