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BCMB 412 - Quiz 3 With Complete Questions And Answers

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BCMB 412 - Quiz 3 With Complete Questions And Answers ...

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BCMB 412 - Quiz 3 With Complete
Questions And Answers

What is the difference between ribose and deoxyribose? - ANSWER Sugar - Ribose vs
Deoxyribose

Strands - Single vs Double

Bases - Uracil vs Thymine



Structure - Ribose has OH while Deoxyribose has H



The phosphodiester bonds in DNA are the same as those in RNA



Meselson and Stahl Experiment - ANSWER Used isotope of nitrogen to change the
weight of DNA N15 & N14, demonstrated that the semi-conservative model is the best
description of replication (Where DNA molecules are all heavy)



Distribution model has results where the DNA molecules are all intermediate and align
in the middle of the tube



Conservative model has results where the DNA molecules are half intermediate, half
heavy and are located at the top and bottom of the tube.



Major functions/roles that RNA molecules perform in the cell - ANSWER Intermediate
genetic information: mRNA

Adaptor for translation of mRNA into proteins: tRNA

Structural role in ribosomes: rRNA



Regulatory role: RNAi interference with translation and transcription. Non-coding RNA
can determine chromatin structure.
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  • bcmb 412 quiz 3 with complete questions and answ
  • what is the difference between ribose and deoxyrib
  • meselson and stahl experiment
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