ʱ : 新课标高中生物教师用书选修三教材教?- 百度文库ϿʼĶ
ѧ QQȺ109891693 ӭϹѧ
ѧϵ
־㲥ӵý嶼л̼ĽܡѧѾ˽һЩ̵ݣ֪˵ػбʹѸ٣֪ˮĿֲбӶܸߵֲڻ̵ĵʵֲ֮Ļǰʵֵ˼뽫ΪʵʵУתҲǵߣаڷתեֲͣתĿޣҩƷ̵תȵء˵ݶѧѧϰ֪ʶϵľ顣
һЩѧϰ֪ʶΪѧϰ֪ʶ̵档
9
ѧ QQȺ109891693 ӭϹѧ
ѧϰøDNAøʱޱйDNAṹ֪ʶϵDNAṹĻ֪ʶܽϺõøĹܡ
ѧϰĿĻʱޱDNAָʺϳɵĹϵѧ⣬ΪʲôҪϼ⣺ټתǷĿĻڼĿĻǷת¼mRNAۼĿĻǷɵʡ
ѧϰĿʱϵޱƻݣӶһЩʶѧϰcDNAĿʱϵDNAת¼й֪ʶmRNAΪģ壬ת¼ɻһDNAԵΪģϳ˫DNA
ѧϰPCRʱϵޱеDNAƵݡ
ѧϰ̵ӦһʱӦѧϵеľѧ˼û̵ķʵ⡣
ġ רϵ
רݶרнܵϵתѧϰ֪ʶĻӦѧѧϰ\İȫԺ⡷ר⡣̡̥йֲ̥ݣʹѧתи⡣ϸ̡нֲϸĿĻֲϸתֲҪڡ⣬ѧϰרʱйע̡̬רгֵ̬⣬˼û̵ķ̬г漼Խ⡣ 1.1 DNA鼼Ļ
һ ѧĿ
1.DNA鼼ֻߵá
2.̵ͬĵͷչ벻оͼ¡ ѧصѵ 1.ѧص
DNA鼼ֻߵá 2.ѧѵ
Ҫ߱ ѧ
1.龳ѧ˼ѧϰ֪ʶ
ҪǽDNA鼼ֻáDzֱסƽķʽܣڵѧѧϰĻԣҲѧѧȫߡӦͨ龳⣬յѧѧ˼բš
øҪǽøãиĽڽⲿѧϰʱѧĵ⡰øѰҡյѧǰѧݩɾȾϸʵ飬ʶϸȵϸܵȻԴDNA֡ôԭ֮ԳڽкαƣյѧʲôøиԴDNAʹ֮ʧЧﵽĿġͽֱġøҪǴԭз봿дһ̽˼
DNAøDNAƬεġӷ롱дñȽϼࡣǿԴԭе֪ʶշѧ˼ﵽáҪӱиDNAѧݴǰѧ֪ʶһӦ뵽DNAۺøѧ뷨IJǺȻġʵϲøDNAƬεӡӦѧDNAۺøDNAøIJͬãӶﵽʶDNAøĿġ
ϸ婤䳵ѧϰݣᵽΪĸѧܽѧס⼸Ӧͨյ˼ȷΪʲôҪĸܳ䵱塣
2.óֱ۵IJͼҵעͣʵʶγȷʶ
10
ѧ QQȺ109891693 ӭϹѧ
־гص㣻ͼϢý壬ֱ۵ص㣬ױ֪⣬ܲҪⱾеĺ壬ʦ뽫IJͼȷϢýлؽƻѧһʱĥijԣھ塢ֱ۵IJͼҵע⡣
ĩˡƽĩ˵ԼIJλֱ۵IJͼЭͬãʹѧȷиӲλ⡰ԡںDNAøǡϡģDNAеںδϲͼ⡣ܽṹģʽͼѧҲʹѧԹйݱ⡣
ģDNAģʱֹֻּֽͶģǸѧںĶֹ̡ʱʶһEcoRIӦȥѰG AATTCļУȻGA֮ɽʱʶֻȥԴģʧʱҲҪ룬ʵ¿ʲôԭ¡
3.ѧӻ̵˼⣬ڽѧѵ㡣
ڵѵǶ߱ķҪ⣬µЧֻнֲϵ̵ƹв⡣磬ѡôӻһе壬ϻ̵ʵĿ룺˭ϸ壿ȻǶԷĻúйǣӶϸȻҪ岻кϸӰС
磬ûбǻֿǷ룬ôμֻ뵽ʵʹⷽѣŻԤΪʲôҪѡ߱ǻ塣
磬ûһͶиλ㣬ͲܽDNA顣DNAܸƣͿܶʧԽʦҪѧһпǣֲΪʵĿꡣ
ġʾ һ˼̽
1.øDNAκβλܽDNAпֲͬøиγɵDNAƬΣ (1) CTGCA (2) AC (3) GC G TG CG 4 G (5) G (6) GC CTTAA ACGTC CG (7) GT (8)AATTC CA G
ǷDNAø
27γɡACGT TGCA
48γɡGAATTC CTTAAG 36γɡGCGC CGCG
15γɡCTGCAG GACGTC
2.ϵе֪ʶһ룬ΪʲôϸøϸDNA
ʾΪֹʹõøֶǴϸùȡģǸԿʶжDNAضļСϸø֮ԲжDNAΪڳڵĽγһƵķƣԴֵDNAԽڳݻУijøϸ
11
ѧ QQȺ109891693 ӭϹѧ
DNAл߲߱øʶиУͨøתƵʶеļϣʹøܽпϸкijøҲʹDNAжϣҿԷֹԴDNA֣ⲻҪѧشȫʦɲοʦеʾѧľָ
ԭҲӦ½йĻش𡣣
3.ȻDNAӿֱΪʲô
ʾΪʹõDNAӺܶplasmidϸ˴ȾɫDNA֮һֿҸơ˫ջ¶DNAӡǷκΪʹأʵȻΪʹõ
1 DNAһøиλ㣬ԱĿĻԲ뵽ȥЩĿĻøеλãҪĻƬ֮⣬ŲĿĻIJʧ
2 DNA߱ҸƵϵȾɫDNAȾɫDNAĸƶͬơ
3 DNAбǻԱӵɸѡ
4 DNAǰȫģϸкܽ뵽ϸϸȥ 5 DNAӴСӦʺϣԱȡв̫Ͳ
ʵȻڵDNAӲȫ߱Ҫ˹ڻ̲ 4.ϲѯDNAøӵDNAı
ʾΪֵֹDNAøӵDNAԭڻҲֿᷢӵDNAø
Ѱʵ
1.յ֪ʶܷøԭеʲô
ʾԭܵȻԴDNA֣ǣڳڵĽγһƵķƣԷֹԭֺøϸһַԹߣԴDNAʱøԴDNAиԱ֤İȫԣøԭҪиԴDNAʹ֮ʧЧӶﵽĿġ
2. DNAøDNAۺøһΪʲô
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