BIO 1140 Lecture Notes - Lecture 13: Titin, Intron, Guanine

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&'()*'% +#+ # 
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5$%$.$!6$,# 5!",+
%#!7$, 589 
3:
3+ $$% !
3+$% (+#% + 
% .$
;#  <(/3
;#8:%$' .
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,$,.$ % .$,$,!=
%$%.$$ $ .$>
$,!
=$ .$ $ $ $
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", %3 5$$
538..+.$: 8.
:+ '9.$8 3: > 
 #  5% ! $,
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?:>% ,.!11% 8 '
@ % : 5$ %.$?!
$$A $,A$ $?%#
$,.$A%#$$  $,.$+$% $>$
#!11%?% +$11%  
$+$'$'#$% 
,!1'.$ $% !1$
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Document Summary

Rna polymerase 2 unzips the dna as in the video. Start with dna that transcribes to rna and then translate it to protein. 5"->3" only one possible order, one way to elongate the segments, dna strand is always synthesized in this direction. You"re trying to build rna which is 5"->3" so there"s only one possible way for the enzyme to accomplish this. Rna polymerase 2 can read and build a complimentary 5"->3" rna. Polymerase does not change the u to t. it changes 3"->5" and grabs new nucleotides. After transcription you get a different step to mature the rna (not required in prokayrotes) In prokaryotes, dna is directly transcribed to mrna. In eukaryotes, dna is transcribed to a pre-messenger rna, that will be matured into mrna, and then be transported out of the nucleus. Hollow enzyme (rna polymerase) in bacteria there"s only 1 rna polymerase that does all of the. It"s an enzyme that"s built with multiple subunits.

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