ࡱ> #%"k bjbj "}}l L    " ^      x   4   0L ,  Review: ______________ and _______________ discovered DNA Each strand of DNA is made of _____________________. Each Nucleotide is made of (3 things) __________, ___________, and _. The 4 nitrogen bases are ________, __________, ___________, and _. The double helix is held together by weak _________ bonds. A always pairs with _____ and C always pairs with ______ =============================================================== DNA REPLICATION The process of making a copy of DNA is called DNA replication. Steps in DNA replication (See figure 9.9 in book) Double helix unwinds with the help of the enzyme DNA helicases. DNA helicases break the hydrogen bonds. Where the DNA separates is called the replication fork At the replication fork enzymes called DNA polymerases add complimentary nucleotides to each strand (2 new double helixes are formed) Two new DNA molecules bond nucleotides into a chain each is identical to the original DNA molecule. *** THE RESULT OF DNA REPLICATION IS TWO EXACT COPIES OR THE CELLS ORIGINAL DNA. EACH NEW DOUBLE HELIX IS COMPOSED OF ONE ORIGINAL DNA STRAND AND ONE NEW DNA STRAND. DNA POLYMERASES (ENZYME!) PROOFREADS DNA DURING ITS REPLICAION SO THAT VERY FEW ERRORS OCCUR. z!CJ 6CJ ]56CJ \] 5CJ \CJ 5>*\   ?@uv?@}~HIq~ & F 1h/ =!"#$% i8@8 NormalCJ_HaJmH sH tH 0@0 Heading 1$@&CJ <A@< Default Paragraph Font ?@uv?@}~HIq~0000000000000000000000 0 0 0000000cybogdanIC:\Documents and Settings\cybogdan\My Documents\Replication Notes DNA.doccybogdanqC:\Documents and Settings\cybogdan\Application Data\Microsoft\Word\AutoRecovery save of Replication Notes DNA.asdcybogdanqC:\Documents and Settings\cybogdan\Application Data\Microsoft\Word\AutoRecovery save of Replication Notes DNA.asdcybogdanqC:\Documents and Settings\cybogdan\Application Data\Microsoft\Word\AutoRecovery save of Replication Notes DNA.asdAv"d^`o(.^`.pLp^p`L.@ @ ^@ `.^`.L^`L.^`.^`.PLP^P`L.Av         @@@UnknownGz Times New Roman5Symbol3& z Arial"h`֡"r0d2Q Review: cybogdancybogdanOh+'0  8 D P \hpx Review: evi cybogdan yboyboNormaln cybogdan 4boMicrosoft Word 9.0@ @@Y@d#՜.+,0 hp  Ocean Lakes HSe2  Review: Title  !$Root Entry F4&1Table WordDocument"SummaryInformation(DocumentSummaryInformation8CompObjjObjectPool44  FMicrosoft Word Document MSWordDocWord.Document.89q