Primase correct answers Synthesize the RNA primers required to initiate replication
Single-strand binding proteins correct answers Binds to parental DNA to prevent reforming of the double hellix
Helicase correct answers breaks hydrogen bonds between base pairs to start unwinding the DNA stran...
Bio 240 Exam 2 || A+ GRADED
Primase correct answers Synthesize the RNA primers required to initiate replication
Single-strand binding proteins correct answers Binds to parental DNA to prevent reforming
of the double hellix
Helicase correct answers breaks hydrogen bonds between base pairs to start unwinding the
DNA strand
Ligase correct answers Glues together via covalent bonds on the Okasaki fragments of the
lagging strand
Primosome correct answers Complex formed when helicase and primase bind
DNA Polymerase III correct answers Binds to DNA strands and synthesizes DNA
DNA Polymerase I correct answers Helps remove the RNA primers and replace them with
DNA segments via the enzyme exonuclease
Topoisomerse II/Gyrase correct answers Travels in front of DNA helicase to help alleviate
supercoiling
Ribosome-binding site correct answers Also called Shine-Dalgarno sequence, provides spot
for ribosome to bind and begin translation
Regulatory sequences correct answers Stretch of DNA involved in regulation of transcription
Terminator correct answers Site that signals the end of transcription
Polycistronic correct answers When an mRNA encodes for more than one polypeptide
Regulatory proteins correct answers Type of transcription factor that controls the rate of
transcription
Stop codon correct answers Signals for the end of polypeptide synthesis
codons correct answers 3 nucleotide sequences in mRNA that signal for specific amino acids
Corepressor correct answers Type of effector molecule that binds to repressors to help it bind
to DNA
Repressor proteins correct answers Inhibit transciption when bound to DNA
Repressible genes correct answers Genes regulated by effector molecules to inhibit
transcription
Inhibitor correct answers Type of effector molecule that binds to activators to keep it from
binding to DNA
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