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19 Cards in this Set
- Front
- Back
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joins lagging strand fragments
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DNA Ligase
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undergoes supercoiling to help separate strands, re super coiling DNA after replication
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DNA Gyrase
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unzips DNA by breaking hydrogen bonds spearates strands
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Helicase
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removes RNA Primer and replaces with correct complimentaty nucleotides
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DNA Pol I
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syntheside RNA Primer
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Primase
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protect single strands of DNA from nuclease enzymes during replication
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SSB
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make up the lagging strand and are synthesized in fragments as DNA is unwound at the replication fork
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Okazaki fragments
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adds ribonucleotides to the growing RNA strand
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RNA polymerase
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upstream of the structural gene very AT Rich Signals the start of transcription
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Promoter
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10 Bases up stream, first promoter element AT rich TATA box in eukaryotes
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Pribnow box
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made up of premRNA and snRNPS. remove introns
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Splicesome
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upstream promoter can bind to transcrpition factors
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Enhancer
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genes are controlled as a group can be turned off by repressors of inducers
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Operon
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RNA Pol binds to promoter and forms closed complex starts transcription
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Initation
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addition of ribonucleotides in a 5 to 3' direction by RNA pol
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elongation
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end of transcritption by 1. inverted repeats or rhofactor which create hairpin loops.
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Termination
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5' cap 3' poly a tail and splicing out introns
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Post Transcriptional modification
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start site of translation. Around 10 base nucleotides upstream from the AUG start site and allows for the ribosome to bind to the proper location for translation chain initation.
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Shine Dalgarno
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The sequence in eukaryotes that surrounds the AUG start codon.
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Kozak
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