Bio 212 Iowa State (exam 2) Questions With Correct Answers.

Bio 212 Iowa State (exam 2) Questions With
Correct Answers

RNA polymerase are responsible for what? - CORRECT ANSWER✔✔-synthesizing
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mRNA


What is the difference between dNTP and NTP? - CORRECT ANSWER✔✔-NTP has
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a -OH group on the 2' carbon
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What is the first thing NTP does? - CORRECT ANSWER✔✔-it attaches to a
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matching base on the DNA template
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What is the second thing NTP does? - CORRECT ANSWER✔✔-It cuts off 2
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phosphates and catalyzes mRNA formation
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What does the coding strand in DNA match (w/ the exception of uracil) -
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CORRECT ANSWER✔✔-RNA!
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T or F does RNA polymerase needs a primer for transcription - CORRECT
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ANSWER✔✔-False


RNA polymerase synthesizes in what direction? - CORRECT ANSWER✔✔-5' to 3'
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, Sigma does what? - CORRECT ANSWER✔✔-binds to RNA polymerase to strart
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transcription


holoenzyme is what? - CORRECT ANSWER✔✔-Sigma + RNA polymerase
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Promoters - CORRECT ANSWER✔✔-sites where sigma binds - promotes
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transcription


Proteins are built from what? - CORRECT ANSWER✔✔-DNA
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Central Dogma - CORRECT ANSWER✔✔-DNA (transcription) mRNA (translation)
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Protein


What contacts DNA first? - CORRECT ANSWER✔✔-Sigma not RNA polymerase
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NTP is the building blocks of what? - CORRECT ANSWER✔✔-RNA!
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NTP starts what? - CORRECT ANSWER✔✔-RNA polymerization
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What does termination do? - CORRECT ANSWER✔✔-ends Transcription
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How does termination end transcription - CORRECT ANSWER✔✔-RNA folds on
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itself (secondary structure) and physically separates itself or a stop codon
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