Bio1_ch16-17post

Bio1_ch16-17post - Chapter 16-17 Nucleic Acids: Structure...

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Chapter 16-17 /0+.1*0)’,-. /0+.1(+,-. Nucleic Acids: Structure and Function "#$ 7 " &-850)9- # $ *)3 ! %#$ 7 % )9- # $ *)3 >+. 9& ; ! 4 + 0& ! – ,-.’- $ D / D D +.3 0 Discovering the structure of DNA • – G1&3 H0+.F().?1 I40+5 *051;+((-<0+’@5 3+;+ Maurice Wilkins J DNA – D eoxyribo N ucleic A cid • >-K+(&.; J +.3 P?OQ R =-061 + +123-456)+5637’ 839:8)(’ • !"# =-061 + .)18;’ 6’;<= • – $(>453-3;;’; – /)*5;’*’(73-? 4 1;0+.31 *-.;+). *-6’(&6&.; • @3+’453<-<(2 L);@ &+*@ -; +.3 $40
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The Structure of DNA PTJ .6 U .6 VTPJ .6 A+B W&5 =&+; A*B A9B N+0,+( *@&6)*+( 1; P ! M ! P ! M ! / / # # Y Y > > > > > > > > > > > Y Y Y Y Y Y Y Y Y / / / / / / # # # # # # Erwin Chargaff’s Rules :2<+0 :2<+0 :2<+0 :2<+0 $.’(<(’ A$B 06?*<(’ A0B /?7)+<(’ A/B UT K+0)&1 9&; ZT [. +.5 1’&*)&1 ; +.3 / 9+1&1 +0& &\2+( +.3 ; How does DNA get copied? DNA DNA DNA DNA DNA DNA When cells divide, the DNA gets copied too Semi-Conservative DNA Replication A+B N+0&.; 1;0+.31 ’+0&.; .&L 1;0+.3 # # # # # # # # # # # # / / / / / / / / / / / / > > > > > > > > Y Y Y Y Y Y Y Y
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DNA replication is necessary for cellular reproduction Starting Replication A3B ,-<2<( )C -’5;<93>)( <( 3( 9’;; A8B ,-<2<(+ )C -’5;<93>)( <( 3 ’1:3-?)>9 9’;; O0)<). -= N+0&.;+( A;&6’(+;&B 1;0+.3 1;0+.3 =-0F !-29(&41; N+0&.;+( A;&6’(+; 1;0+.3 1;0+.3 VTM μ 6 VTZM What does each enzyme do?
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This note was uploaded on 02/09/2012 for the course BIOLOGY E2A taught by Professor Anderson during the Spring '11 term at Harvard.

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Bio1_ch16-17post - Chapter 16-17 Nucleic Acids: Structure...

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