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Summary Biologie V2 opsommings

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Deeglike opsommings van matriek biologie ,presies opgesom soos moet beantwoord in vraestelle ,volgens die departument

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  • January 19, 2025
  • 39
  • 2024/2025
  • Summary
All documents for this subject (1157)
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lizemarilm
,DNA

, DNA Deoksiribonuklëinsuur

=
Funksies van -
DnA : 4 I
Nie-kodeerende DNA :
Gene dra erflikheidseienskappe 98% van DNA kodeer nie

- spesifieke volgorde waarvolgends Kodeer nie om proteïene te vorm nie

stikstofbassise gerangskik is

Bepaal die soort proteïen wat gevorm moet word I
Kodeerende DNA :
- verskaf n kode waarvolgends aminosure 2% van DNA kodeer omrede :
moet bind tydens proteïensintese Kodeer om proteïene te vorm

Bepaal waar geen aan en af geskakel word

I
Ligging van DnA : Beskerm geen teen mutasies

Binne nukleus : Beskerm kopeering van gene tydens transskripsie

- Chromosomale nukleus

Binne die selkern I
Geskiedenjs van DNA :
Buite nukleus (ekstra nukleuêre DNA) :
James Watson en Fransis Crick het struktuur van
-Mitochondriale DNA
DNA-dubbel heliks geformuleer
Binne plantselle , dierselle en vroulike voorouers
Maurice Wilikins en Rosalind het ‘n X-straal
Binne mitochondria
foto geneem
- Chloroplast DNA
Watson en Crick het sonder toestemming die
Slegs in plantstelle
foto’s bestudeer en ‘n 3D midel van DNA gebou
Binne chloroplast
Hulle almal ontvang saam die Nobelprys

vir Fisiologie

I
Bou van DNA :
Is ‘n makro-molekuul

DNA dubbel heliks

Twee stringe wat om mekaar gedraai is

Is ‘n polinukleotiedketting :

DNA bestaan uit nukleotiede

Nukleotiede is monomere wat die boustene van DNA is

Is in ‘n natuurlike vorm

, Nukleotiedes
I Stikstofbassise

4 &
-
Wat is nukleotiedes ? Soorte Stikstofbassise :
• Monomere Puriene :

• Boustene van DNA Struktuur bestaan uit dubbelring

• Nukleotiedes bind aan mekaar om lang Puriene basisse : Adenien en Guanien

kettings te vorm Pirimidiene :

• Stikstofbasisse word aan mekaar geheg Struktuur bestaan uit enkelring

deur swak waterstofbindings Pirimidiene basisse : Timien en Sitosien




4
Bou van Nukleotiedes : I
Kode van lewe :
Fosfaat Volgorde van kode verskaf vir Proteïensintese

Elke DNA string se kode verskil
Stikstofbasis
Maak DNA uniek

Altyd ewe veel A , T , G en C


Deoksiribose suiker


Bou van ‘n nukleotied



4
Soorte Nukloetiedes :
Adenien

Timien

Guanien

Sitosien



4
Stokdiagram :
Komplementêre
Templaat string

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