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USMLE' Step 1 .
Biochemistry Notes
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*USMLEis a joint program of the Federation of State Medical Boards of the United States, Inc. and the National Board of Medical Examiners.
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Authorand ExecutiveEditor
Barbara Hansen, .
Chair of Biochemistry Department
Kaplan Medical
Chicago,IL
Author
Lynne , .
Professor and Associate Chairman
Department of Human ics
University of Utah Health Sciences Center
Salt Lake City, UT
Contributors
Roger Lane, .
Associate Professor
University of South Alabama College of Medicine
Mobile, AL
Vernon Reichenbacher, .
Associate Professor
Department of Biochemistry and Molecular Biology
Marshall University School of Medicine
Huntington, WV
ExecutiveDirectorof Curriculum
Richard Friedland, .
DirectorofPublishingandMedia
Michelle Covello
DirectorofMedicalIllustration
Christine Schaar
ManagingEditor
Kathlyn McGreevy
ProductionEditor
Ruthie Nussbaum
ProductionArtist
Michael Wolff
CoverDesign
Joanna Myllo
CoverArt
Christine Schaar
Rich o
TableofContents
Preface.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Section I: Molecular Biology and Biochemistry
Chapter 1: anization.. . . . . . . . . . . . . . . . . . . 3
Chapter2:DNAReplicationandRepair. . . . . .. . . . . . .. . . . . . .. .. .. . . . . 15
Chapter 3: TranscriptionandRNAProcessing... . . . . , . . . . . . . . . . . . . . . . 27
"
Chapter 4: The ic Code, Mutations,andTranslation... . . . . . . . . . . . . 43
Chapter5: icRegulation.... . .. . . .. .. .. . .. . .. ... . . ... . .. . . . . 67
Chapter 6