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Ch 8 Biology Review

Biology Ch 8 Review

QuestionAnswer
Avery results not accepted by most scientists, transformation prevented by DNA destroying enzymes, DNA was the genetic material
Hershey and Chase added to Avery’s work, radioactive tracers, DNA stores genetic information
DNA sugar is deoxyribose, double helix, made of nucleotides
Nucleotide phosphate, sugar, nitrogen base
RNA sugar is ribose, one strand, uracil instead of thymine, ESSAY=name and describe 3 types
Messenger delivers information to ribosomes
Transfer carries amino acids to mRNA
Ribosomal makes ribosomes
Franklin X ray diffraction, discovered helical shape
Wilkins and Franklin first to suggest DNA was helix
Replication occurs before cell division, one mistake every billion nucleotides, two complimentary strands unwind and unzip while being duplicated, ESSAY=describe process
Helicase breaks hydrogen bonds, enzyme
DNA Polymerase check for errors during replication, add nucleotides during replication
Translation anticodon bonds to codon and releases amino acid into a chain, involves mRNA and tRNA, occurs at ribosomes
Genetic Code same in all organisms, use table
Mutations insertion, deletion, substitution
Insertion a base is added
Deletion a base is left out
Substitution a base is put in place of another
Griffith caused harmless bacteria to become deadly,
Watson and Crick DNA is double stranded and twists into a double helix, established structure of DNA
Chargaff’s rule A=T, C=G
Transcription messenger RNA is produced,
Codon nucleotide triplet specifies for specific amino acid
Ribosomes 3 binding sites during translation
Created by: evroman
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