µÚÈýÕ ºËËáµÄ½á¹¹Ó빦ÄÜ RS
/*Dp^
`& }C*i"
Ò»¡¢ºËËáµÄ»¯Ñ§×é³É£º 5{O9<~,
+]jJ: V
1£®º¬µª¼î£º²ÎÓëºËËáºÍºËÜÕËá¹¹³ÉµÄº¬µª¼îÖ÷Òª·ÖΪàÑßʼîºÍà×़îÁ½´óÀà¡£×é³ÉºËÜÕËáµÄà×़îÖ÷ÒªÓÐÈýÖÖ¡ª¡ªÄòà×ण¨U£©¡¢°ûà×ण¨C£©ºÍÐØÏÙà×ण¨T£©£¬ËüÃǶ¼ÊÇà×वÄÑÜÉúÎï¡£×é³ÉºËÜÕËáµÄàÑßʼîÖ÷ÒªÓÐÁ½ÖÖ¡ª¡ªÏÙàÑßÊ£¨A£©ºÍÄñàÑßÊ£*****£©£¬ËüÃǶ¼ÊÇàÑßʵÄÑÜÉúÎï¡£ nTxN>?l2E
DyPb]Udb:
2£®ÎìÌÇ£ººËÜÕËáÖеÄÎìÌÇÖ÷ÒªÓÐÁ½ÖÖ£¬¼´¦Â-D-ºËÌÇÓë¦Â-D-2-ÍÑÑõºËÌÇ£¬Óɴ˹¹³ÉµÄºËÜÕËáÒ²·ÖΪºËÌǺËÜÕËáÓëÍÑÑõºËÌǺËËáÁ½´óÀà¡£ 6eHw\
$/
m005*>IY
3£®ºËÜÕ£ººËÜÕÊÇÓÉÎìÌÇÓ뺬µª¼î»ù¾ÍÑË®ËõºÏ¶øÉú³ÉµÄ»¯ºÏÎͨ³£ÊÇÓɺËÌÇ»òÍÑÑõºËÌǵÄC1¡¯ ¦Â-ôÇ»ùÓëà×़îN1»òàÑßʼîN9½øÐÐËõºÏ£¬¹ÊÉú³ÉµÄ»¯Ñ§¼ü³ÆÎª¦Â£¬NÌÇÜÕ¼ü¡£ÆäÖÐÓÉD-ºËÌÇÉú³ÉÕß³ÆÎªºËÌǺËÜÕ£¬¶øÓÉÍÑÑõºËÌÇÉú³ÉÕßÔò³ÆÎªÍÑÑõºËÌǺËÜÕ¡£ÓÉ¡°Ï¡Óмî»ù¡±ËùÉú³ÉµÄºËÜÕ³ÆÎª¡°Ï¡ÓкËÜÕ¡±¡£¼ÙÄòÜÕ£¨¦×£©¾ÍÊÇÓÉD-ºËÌǵÄC1¡¯ ÓëÄòà×वÄC5ÏàÁ¬¶øÉú³ÉµÄºËÜÕ¡£ )b;}]C
'w~e>$WI
¶þ¡¢ºËÜÕËáµÄ½á¹¹ÓëÃüÃû£º iE=:}"pI"
-x2&IJ!
ºËÜÕËáÊÇÓɺËÜÕÓëÁ×Ëá¾ÍÑË®ËõºÏºóÉú³ÉµÄÁ×Ëáõ¥À໯ºÏÎ°üÀ¨ºËÌǺËÜÕËáºÍÍÑÑõºËÌǺËËáÁ½´óÀà¡£×î³£¼ûµÄºËÜÕËáΪ5¡¯-ºËÜÕËᣨ5¡¯ ³£±»Ê¡ÂÔ£©¡£5¡¯-ºËÜÕËáÓֿɰ´ÆäÔÚ5¡¯Î»ËõºÏµÄÁ×Ëá»ùµÄ¶àÉÙ£¬·ÖΪһÁ×ËáºËÜÕ£¨ºËÜÕËᣩ¡¢¶þÁ×ËáºËÜÕºÍÈýÁ×ËáºËÜÕ¡£ B*T;DE
U
A}N
´ËÍ⣬ÉúÎïÌåÄÚ»¹´æÔÚÒ»Ð©ÌØÊâµÄ»·ºËÜÕËᣬ³£¼ûµÄΪ»·Ò»Á×ËáÏÙÜÕ£¨cAMP£©ºÍ»·Ò»Á×ËáÄñÜÕ£¨cGMP£©£¬ËüÃÇͨ³£ÊÇ×÷Ϊ¼¤ËØ×÷ÓõĵڶþÐÅʹ¡£ +U*:WKdI?
F@u>5e^6
ºËÜÕËáͨ³£Ê¹ÓÃËõд·ûºÅ½øÐÐÃüÃû¡£µÚһλ·ûºÅÓÃСд×Öĸd´ú±íÍÑÑõ£¬µÚ¶þλÓôóд×Öĸ´ú±í¼î»ù£¬µÚÈýλÓôóд×Öĸ´ú±íÁ×Ëá»ùµÄÊýÄ¿£¬µÚËÄλÓôóд×ÖĸP´ú±íÁ×Ëá¡£ 1i:Q
%E
F
f,QBj{M,
Èý¡¢ºËËáµÄÒ»¼¶½á¹¹£º BewJ!,A!
71!'k>]h
ºËÜÕËáͨ¹ý3¡¯£¬5¡¯-Á×Ëá¶þõ¥¼üÁ¬½ÓÆðÀ´ÐγɵIJ»º¬²àÁ´µÄ¶àºËÜÕË᳤Á´»¯ºÏÎï¾Í³ÆÎªºËËá¡£ºËËá¾ßÓз½ÏòÐÔ£¬5¡¯-λÉϾßÓÐ×ÔÓÉÁ×Ëá»ùµÄÄ©¶Ë³ÆÎª5¡¯-¶Ë£¬3¡¯-λÉϾßÓÐ×ÔÓÉôÇ»ùµÄÄ©¶Ë³ÆÎª3¡¯-¶Ë¡£ #x[3@zP.
u[?M{E/HU
DNA ÓÉdAMP¡¢dGMP¡¢dCMPºÍdTMPËÄÖÖÍÑÑõºËÌǺËÜÕËáËù×é³É¡£DNAµÄÒ»¼¶½á¹¹¾ÍÊÇÖ¸DNA·Ö×ÓÖÐÍÑÑõºËÌǺËÜÕËáµÄÖÖÀà¡¢ÊýÄ¿¡¢ÅÅÁÐ˳Ðò¼°Á¬½Ó·½Ê½¡£RNAÓÉAMP£¬GMP£¬CMP£¬UMPËÄÖÖºËÌǺËÜÕËá×é³É¡£RNAµÄÒ»¼¶½á¹¹¾ÍÊÇÖ¸RNA·Ö×ÓÖкËÌǺËÜÕËáµÄÖÖÀà¡¢ÊýÄ¿¡¢ÅÅÁÐ˳Ðò¼°Á¬½Ó·½Ê½¡£ Ro
eLf Ow
#>\%7b59>
ËÄ¡¢DNAµÄ¶þ¼¶½á¹¹£º L#9g ~>~
d0 qc%.
s
DNA Ë«ÂÝÐý½á¹¹ÊÇDNA¶þ¼¶½á¹¹µÄÒ»ÖÖÖØÒªÐÎʽ£¬ËüÊÇWatsonºÍCrickÁ½Î»¿ÆÑ§¼ÒÓÚ1953ÄêÌá³öÀ´µÄÒ»ÖֽṹģÐÍ£¬ÆäÖ÷ҪʵÑéÒÀ¾ÝÊÇ ChargaffÑо¿Ð¡×é¶ÔDNAµÄ»¯Ñ§×é³É½øÐеķÖÎöÑо¿£¬¼´DNA·Ö×ÓÖÐËÄÖÖ¼î»ùµÄĦ¶û°Ù·Ö±ÈΪA=T¡¢G=C¡¢A+G=T+C£¨ChargaffÔÔò£©£¬ÒÔ¼°ÓÉWilkinsÑо¿Ð¡×éÍê³ÉµÄDNA¾§ÌåXÏßÑÜÉäͼÆ×·ÖÎö¡£ L|A.;Gq
i.G"21M
ÌìÈ»DNAµÄ¶þ¼¶½á¹¹ÒÔBÐÍΪÖ÷£¬Æä½á¹¹ÌØÕ÷Ϊ£º¢ÙΪÓÒÊÖË«ÂÝÐý£¬Á½ÌõÁ´ÒÔ·´Æ½Ðз½Ê½ÅÅÁУ»¢ÚÖ÷Á´Î»ÓÚÂÝÐýÍâ²à£¬¼î»ùλÓÚÄڲࣻ¢ÛÁ½ÌõÁ´¼ä´æÔÚ¼î»ù»¥²¹£¬Í¨¹ýÇâ¼üÁ¬Ïµ£¬ÇÒA-T¡¢G-C£¨¼î»ù»¥²¹ÔÔò£©£» ¢ÜÂÝÐýµÄÎȶ¨ÒòËØÎªÇâ¼üºÍ¼î»ù¶ÑÆöÁ¦£»¢ÝÂÝÐýµÄÂݾàΪ3.4nm£¬Ö±¾¶Îª2nm¡£ C!s !j
[3fmhc
]Wdnr1d~8
Îå¡¢DNAµÄ³¬ÂÝÐý½á¹¹£º <n{-&;>
;Br
#e1~
Ë«ÂÝÐýµÄDNA·Ö×Ó½øÒ»²½ÅÌÐýÐγɵij¬ÂÝÐý½á¹¹³ÆÎªDNAµÄÈý¼¶½á¹¹¡£ Ki(
Xgyi}~AoaU
¾ø´ó¶àÊýÔºËÉúÎïµÄDNA¶¼Êǹ²¼Û·â±ÕµÄ»·×´Ë«ÂÝÐý£¬ÆäÈý¼¶½á¹¹³ÊÂ黨״¡£ QTT2P(Pz
G+zIh}9
ÔÚÕæºËÉúÎïÖУ¬Ë«ÂÝÐýµÄDNA·Ö×ÓÎ§ÈÆÒ»µ°°×Öʰ˾ÛÌå½øÐÐÅÌÈÆ£¬´Ó¶øÐγÉÌØÊâµÄ´®Öé×´½á¹¹£¬³ÆÎªºËСÌå¡£ºËСÌå½á¹¹ÊôÓÚDNAµÄÈý¼¶½á¹¹¡£ 2}jC%jR2
p~NFiZ,
Áù¡¢DNAµÄ¹¦ÄÜ£º _W^{,*p
wwVg'V;
DNAµÄ»ù±¾¹¦ÄÜÊÇ×÷ΪÒÅ´«ÐÅÏ¢µÄÔØÌ壬ΪÉúÎïÒÅ´«ÐÅÏ¢¸´ÖÆÒÔ¼°»ùÒòÐÅÏ¢µÄת¼Ìṩģ°å¡£ `=JGlN7
x>m=n_
DNA·Ö×ÓÖоßÓÐÌØ¶¨ÉúÎïѧ¹¦Äܵį¬¶Î³ÆÎª»ùÒò£*****ene£©¡£Ò»¸öÉúÎïÌåµÄÈ«²¿DNAÐòÁгÆÎª»ùÒò×é£*****enome£©¡£»ùÒò×éµÄ´óСÓëÉúÎïµÄ¸´ÔÓÐÔÓйء£ *J|]E(
YCnKX<Wv
Æß¡¢RNAµÄ¿Õ¼ä½á¹¹Ó빦ÄÜ£º .:V4>
?2i\ERG?
RNA·Ö×ÓµÄÖÖÀà½Ï¶à£¬·Ö×Ó´óС±ä»¯½Ï´ó£¬¹¦ÄܶàÑù»¯¡£RNAͨ³£ÒÔµ¥Á´´æÔÚ£¬µ«Ò²¿ÉÐγɾֲ¿µÄË«ÂÝÐý½á¹¹¡£ <`WtP+`
85 <%L:EC
1£®mRNA µÄ½á¹¹Ó빦ÄÜ£ºmRNAÊǵ¥Á´ºËËᣬÆäÔÚÕæºËÉúÎïÖеijõ¼¶²úÎï³ÆÎªHnRNA¡£´ó¶àÊýÕæºË³ÉÊìµÄmRNA·Ö×Ó¾ßÓеäÐ͵Ä5¡¯-¶ËµÄ7-¼×»ùÄñÜÕÈýÁ×Ëᣨm7GTP£©Ã±×ӽṹºÍ3¡¯-¶ËµÄ¶à¾ÛÏÙÜÕËᣨpolyA£©Î²°Í½á¹¹¡£mRNAµÄ¹¦ÄÜÊÇΪµ°°×ÖʵĺϳÉÌṩģ°å£¬·Ö×ÓÖдøÓÐÒÅ´«ÃÜÂë¡£mRNA·Ö×ÓÖÐÿÈý¸öÏàÁڵĺËÜÕËá×é³ÉÒ»×飬ÔÚµ°°×ÖÊ·ÒëºÏ³Éʱ´ú±íÒ»¸öÌØ¶¨µÄ°±»ùËᣬÕâÖÖºËÜÕËáÈýÁªÌå³ÆÎªÒÅ´«ÃÜÂ루coden£©¡£ Egr'IbB
AAPfU_:
^
2£®tRNAµÄ½á¹¹Ó빦ÄÜ£ºtRNAÊÇ·Ö×Ó×îС£¬µ«º¬ÓÐÏ¡Óмî»ù×î¶àµÄRNA¡£tRNAµÄ¶þ¼¶½á¹¹ÓÉÓÚ¾Ö²¿Ë«ÂÝÐýµÄÐγɶø±íÏÖΪ¡°ÈýÒ¶²Ý¡±ÐΣ¬¹Ê³ÆÎª¡°ÈýÒ¶²Ý¡±½á¹¹£¬¿É·ÖΪÎå¸ö²¿·Ö£º¢Ù°±»ùËá±Û£ºÓÉtRNAµÄ5¡¯-¶ËºÍ3¡¯-¶Ë¹¹³ÉµÄ¾Ö²¿Ë«ÂÝÐý£¬3¡¯-¶Ë¶¼´øÓÐ-CCA-OH˳Ðò£¬¿ÉÓë°±»ùËá½áºÏ¶øÐ¯´ø°±»ùËá¡£¢ÚDHU ±Û£ºº¬ÓжþÇâÄòà×ऺËÜÕ£¬Óë°±»ùõ£tRNAºÏ³ÉøµÄ½áºÏÓйء£¢Û·´ÃÜÂë±Û£ºÆä·´ÃÜÂë»·Öв¿µÄÈý¸öºËÜÕËá×é³ÉÈýÁªÌ壬ÔÚµ°°×ÖÊÉúÎïºÏ³ÉÖУ¬¿ÉÒÔÓÃÀ´Ê¶±ð mRNAÉÏÏàÓ¦µÄÃÜÂ룬¹Ê³ÆÎª·´ÃÜÂ루anticoden£©¡£¢Ü T¦×C±Û£ºº¬±£ÊصÄT¦×C˳Ðò£¬¿ÉÒÔʶ±ðºËµ°°×ÌåÉϵÄrRNA£¬´ÙʹtRNAÓëºËµ°°×Ìå½áºÏ¡£¢Ý¿É±ä±Û£ºÎ»ÓÚT¦×C±ÛºÍ·´ÃÜÂë±ÛÖ®¼ä£¬¹¦Äܲ»Ïê¡£ w6FVSU]sY
mH)th7
3£®rRNAµÄ½á¹¹Ó빦ÄÜ£ºrRNAÊÇϸ°ûÖк¬Á¿×î¶àµÄRNA£¬¿ÉÓëµ°°×ÖÊÒ»Æð¹¹³ÉºËµ°°×Ì壬×÷Ϊµ°°×ÖÊÉúÎïºÏ³ÉµÄ³¡Ëù¡£ÔºËÉúÎïÖеÄrRNAÓÐÈýÖÖ£º5S£¬16S£¬23S¡£ÕæºËÉúÎïÖеÄrRNAÓÐËÄÖÖ£º5S£¬5.8S£¬18S£¬28S¡£ @1^:V-=
0|D
l/
1
°Ë¡¢ºËø£º 6 Z7J<0
=]<JkWSk
¾ßÓÐ×ÔÉí´ß»¯×÷ÓõÄRNA³ÆÎªºËø£¨ribozyme£©£¬ºËøͨ³£¾ßÓÐÌØÊâµÄ·Ö×ӽṹ£¬È紸ͷ½á¹¹¡£ (X( c.Jj
+U= !svE
¾Å¡¢ºËËáµÄÒ»°ãÀí»¯ÐÔÖÊ£º V07? sc<
4N{5i)
ºËËá¾ßÓÐËáÐÔ£»Õ³¶È´ó£»ÄÜÎüÊÕ×ÏÍâ¹â£¬×î´óÎüÊÕ·åΪ260nm¡£ vg ^&j0
11jDAA(|
Ê®¡¢DNAµÄ±äÐÔ£º Od@<L
EaXDY<
ÔÚÀí»¯ÒòËØ×÷ÓÃÏ£¬DNAË«ÂÝÐýµÄÁ½Ìõ»¥²¹Á´ËÉÉ¢¶ø·Ö¿ª³ÉΪµ¥Á´£¬´Ó¶øµ¼ÖÂDNAµÄÀí»¯ÐÔÖʼ°ÉúÎïѧÐÔÖÊ·¢Éú¸Ä±ä£¬ÕâÖÖÏÖÏó³ÆÎªDNAµÄ±äÐÔ¡£ >$dkA\&p