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ch 10 test

molecular genetics

QuestionAnswer
Purines double rings of carbon, guanine and adenine
RNA Polymerase transcription begins, binds to beging of gene on region of DNA called a promoter
Watson and Crick determined that DNA molecules have the shape of a doule helix
Replication DNA copies itself
tRNA brings amino acids to ribosomes during translation
Virulent ability of microorganism to cause disease
Avery's prevention of transformation using DNA- destroying enzymes provided evidence that _________ molcules function as herediatry material DNA
Base pairing rules adenine pairs with thymine and guanine pairs with cytoscyne
Uracil nitrogen-containg base only in RNA
Nitrogenus bases Thymine, Adenine, Guanine, and cytosine are NB
Frame Shift mutation; grouped incorrectly
Anticodons nucleotide sequences of tRNA that are complementary to codons on mRNA
Messenger RNA produced during transcription; ribonucleic acid that carries genetic info. from DNA to ribosome
Polypeptides long chains made of lots of amino acids
RNA is _______ stranded single
Nucleotide phosphate group, 5 carbon sugar, nitrogenous base
DNA Polymerase replicates DNA by adding complementary
Promotor singals RNA polymerase to begin transcripition
Pyrimidines single bond; cytosyine and thymine
Ribose 5 carbon sugar in RNA
Information in a molecule of mRNA used to make protein in process of __________ translation
Griffith's expirements showed live bacteria without capsules could make capsules with dead bacteria during __________ Transformation
Mutations changes or errors in genetic info.
Watson and Crick used x-ray ________ photographs of wilkins and franklin to build their model of DNA. diffraction
Chromosomal Mutation parts of chromosomes are broken off and lost during mitosis or meosis
Point Mutations change 1 or a few nucleotides in a gene
Protein Syntesis stages are transcription
Replication Fork Y-shaped region when 2 strands seperate
Helicases enzymes that unwind DNA double helix by breaking hydrogen bonds
Base Pairing Rules made by Chaff's observations; describes specific pairing on DNA strands
Nondisjuction failure to seperate replicated chromosomes
Of 64 codons of mRNA, 61 for ______, 3 for ______ signals and 1 for _______ signal amino, stop, start
Codon 3 nucleotides that code for amino acids or syntesis protein
Hershey and Chase concluded that _____ is hereditary material in viruses. DNA
Dexoyribose name of 5 carbon sugar in DNA
Translocation piece of chromosome attaches to a nonhomologus chromosome
bacterophage viruses that infect bacteria
Stop codons UAA UGA UAG
Created by: dabears
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