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Chapter 13

Biology 1002B Chapter Notes - Chapter 13: Precursor Mrna, Small Nuclear Rna, Start Codon


Department
Biology
Course Code
BIOL 1002B
Professor
Patrick Mc Donald
Chapter
13

This preview shows pages 1-3. to view the full 14 pages of the document.
     1
Biology 1202 B
Lecture Cycle 6
Chapter 13: Transcription and Translation
The Connection between DNA, RNA, and Protein


Genes Specify Either Protein or RNA Products
2 pieces of research, involving defects of metabolism, illustrate that genes encode proteins:
  !"#$
%&'(
! 
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
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)#*34
! 2!Neurospora—5
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! 8
*&#
8
! +1&!Neurospora9!
166
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66&
! +1*&
**66
! 1!66#
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17/##
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! :
*77"&
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;!<=**1#=

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! +1

3argE, argF, argG,argH4
! 1
6666
##3
77
4#
! 266
#
66>
! 0arg=
$66
! +1

#
*
! 8

*
?#+1
*#
.' !'0*@.@
*
?A&
+A1
60
B

+1%.' !'B@.
8!*#
*
The Pathway from gene to Polypeptide Involves Transcription and
translation
The pathway from gene to polypepde has 2 major steps:
 1.6
8
! )
( 1.18
! )##7
=.

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     3
8B.?#**8
::7
! !
68384.8.7

8.B
8#
8
! 78#
/8C


BA
A
! D=
A7
#
A8
&

Genetic Code is Written in Three-Letter Words Using a Four-Letter
Alphabet
1EF$3#1#)# 4E3#
1# #)4
1@0E$3#G# #)4E83#G# #
)4
! +H=I1:7G8
! 2E8#(,
Breaking the Genec Code
).1/
:
! J!$
! ).0J$34
/
J!$83
4
6BK#
/8%
8384#
.LE8%#
=#18% 
=8%#
1&M,LE.

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