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AP Bio - DNA

AP Bio - DNA - Mrs. Welch's class

QuestionAnswer
scientist who discovered nuclin in pus on old bandages Mischer
scientist who injected pneumonia into rats Griffith
scientist who chemically analyzed the transforming factor and determined that it was DNA Avery
scientists who determined that DNA is a double helix Watson and Crick
scientists who performed the blender experiment and determined that DNA was genetic material Hershey and Chase
scientists who determined the one gene-one enzyme hypothesis Beadle and Tatum
scientist who took x-ray diffraction photos of DNA Franklin
sugar in DNA deoxyribose
three parts of a nucleotide phosphate, deoxyribose, nitrogenous base
four DNA bases adenine, guanine, cytosine, thymine
pyrimidines cytosine, thymine
purines adenine, guanine
group of bases with two rings purines
group of bases with one ring pyrimidines
virus that attacks bacteria bacteriophage
scientist who determined that A=T and C=G Chargaff
enzyme that unwinds DNA helicase
enzyme that adds complementary bases to the new DNA strand DNA polymerase
enzyme that adds complementary bases to the new RNA strand RNA polymerase
enzyme that makes a primer on the lagging strand of the replicating DNA RNA polymerase
enzyme that seals the Okazaki fragments together ligase
scientists who determined that DNA replication is semiconservative Meselson and Stahl
type of RNA that takes a message from DNA in the nucleus to the ribosomes in the cytoplasm mRNA
type of RNA that transfers amino acids to the ribosomes tRNA
type of RNA that makes up the ribosomes rRNA
location where DNA replication occurs nucleus
location where DNA transcription occurs nucleus
location where DNA translation occurs cytoplasm
number of amino acids 20
the start codon AUG (methionine)
the stop codons UGA, UAA, UAG
nitrogenous base used in RNA only, instead of T U (uracil)
"junk" DNA; doesn't code for any genes intron
the good DNA that will be expressed as a protein exon
bonds that hold nitrogenous bases together hydrogen
bond between amino acids peptide
set of three bases on a mRNA strand codon
set of three bases on tRNA anticodon
example of a repressible operon trp operon
example of an inducible operon lac operon
short sequence of DNA where RNA polymerase attaches on a prokaryotic gene promoter
short portion of DNA where an active repressor binds operator
a prokaryotic gene + its promoter and operator operon
a DNA sequence that moves between chromosomes and shuts down genes transposon
added to the 5' end of a mRNA before leaving the nucleus cap (guanine cap)
added to the 3' end of a mRNA before leaving the nucleus poly-A tail
Created by: mrsjwelch
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