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samenvatting hoofdstuk 17 biologie

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dit is de samenvatting van nectar hoofdtuk 17

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Connected book

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Institution
Secondary school
Level
Course
School year
6

Document information

Summarized whole book?
No
Which chapters are summarized?
Hoofdstuk 17
Uploaded on
September 14, 2022
Number of pages
2
Written in
2020/2021
Type
Summary

Subjects

Content preview

Biologie moleculaire genetica
DNA bevindt zich in het kernplasma om histone
In je cel zitten 46 chromosomen in 23 paren hierin zit het DNA

, gewikkeld
.




opbouw Nucleotiden
i

÷
1 .



desoxyribose
fosfaat
.eu/inethymine-cgtosine
2

stikstof base ( AÄ
.




3 .


guanine )
Nucleotiden vormen paren via
-




basen .
tegenover elkaar
2e worden door
DNA-polymerase gekoppeld naast elkaar

B groei cellen hiervoor
en
verwonding z n nieuwe
nodig .




nodig
1. ontbinden dubbele helix hdicase knipt de H .
-




bruggen tu
bindt nieuwe base ( 3 > 5 )
DNA-Polymerase
' '

2. -




De leidende
streng
gaat in 1 ×





De
volgende streng bestaat uit okazi -




fragmenten ligase ,
ko

DNA -
isoleren
1. openbreken van de cel
2. verw deren van het icase
b. U Protease m .
.




3.
verw deren van RNA m b. u RNA ase . .




en neerslaan van het DNA
4.
Centrifugeren
DNA knippen ; restrictie-enzymen knippen door de strengen
eigen volgorde en knipt in het DNA op z'n eigen manier .




DNA kopiëren
PCR (polymerase Chain reaction ) .




1. denural.ie
b splitsen 95°C ,
DNA-strengen
het binden primars op de
2.
annealing b 55°C ,
uiteinde
3.
elongatie b 72°C DNA replicatie door Taq
,
- -




polymerase
DNA scheiden
-0
; m .
b. v
gelelektroforese
IN

langzaam ,
dus snel
even snel dus groot
-




→ ,
even
-
-




het snelst dus het kleinste
-





.






DNA
sequencing

dideoxg nucleotiden heeft één enkele H i.p.v OH
groep Dit
zorg
-


.
,



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