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Biology 1361 week 3 notes

by: Hannah Notetaker

Biology 1361 week 3 notes BIOL 1361

Marketplace > University of Houston > BIOL 1361 > Biology 1361 week 3 notes
Hannah Notetaker
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thes are class notes for homework
Intro Biology
Dr. Ann Cheek
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This 2 page Class Notes was uploaded by Hannah Notetaker on Wednesday July 20, 2016. The Class Notes belongs to BIOL 1361 at University of Houston taught by Dr. Ann Cheek in Fall 2016. Since its upload, it has received 2 views.


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Date Created: 07/20/16
Notes For Biology 1361 I. Linkage: Phosphodiester boond:2 nucleotides are linked via phosphate group II. Primary Structure i. DNA sequence of A,G,C,T nucleotides ii. RNA-Sequence of A, G,C,U nucleotides III. Secondary Structure a. RNA: single strand fold onto itself b. Hydrogen bonds form between complementary N-bases c. DNA:2 anti-parallel strands linked by hydrogen bonds d. Twisted into double helix because of hydropholic interactions I. Tertiary structure RNA: can fold into complex shapes DNA: supercoiling II. RNA World Hypothesis RNA was the first self-replicating molecule RNA molecules experienced natural selection Most effective self replicating became more common III. Evaluating evidence for RNA v. DNA IV. RNA: contains information that allows interaction with env’t, can self- replicate, ribozymes can evolve slowly V. DNA: contains information that allows interaction with env’t, cannot self- replicate (needs enzymes), cannot evolve VI. Chemical Evolution, RNA, and First Cell Amino acids, ribose, lipids, nitrogenous bases ribonucleotides ribozymes protein enzymes I.


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