Lecture 12 Biol302 Spring 2011

Lecture 12 Biol302 Spring 2011 - Chapter 9 and some of 8...

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Unformatted text preview: Chapter 9 and some of 8 DNA and the Molecular Structure of Chromosomes Chapter Outline Functions of the Genetic Material Proof That Genetic Information Is Stored in DNA The Structures of DNA and RNA Chromosome Structure in Prokaryotes and Viruses Functions of the Genetic Material The genetic material must replicate, control the growth and development of the organism, and allow the organism to adapt to changes in the environment . Functions of the Genetic Material Genotypic Function: Replication Phenotypic Function: Gene Expression Evolutionary: Allows for Mutation Chromosomes Genes are located on chromosomes. Chromosomes contain proteins and nucleic acids. The nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Proof that Genetic Information is Stored in DNA In most organisms, the genetic information is encoded in DNA. In some viruses, RNA Is the genetic material. Viroids are infectious naked RNA molecules, and prions are infectious, heritable proteins ( not TRUE ). DNA Mediates Transformation Convert IIR to IIIS By DNA? Avery MacLeod and McCarty Experiment Circa 1943 The Genetic Material of Bacteriophage T2 is DNA...
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This note was uploaded on 02/14/2012 for the course BIO 302 taught by Professor Feinstein during the Spring '11 term at Iowa State.

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Lecture 12 Biol302 Spring 2011 - Chapter 9 and some of 8...

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