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DNA

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by

Vera Blaauw

on 18 March 2014

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Transcript of DNA

Mitose en celdeling
- mitose, kerndeling:


1 kern (2n)
Ongeslachtelijke voortplanting
- ongeslachtelijke voortplanting verloopt d.m.v. mitose en celdeling
DNA-replicatie
DNA-replicatie --> DNA verdubbelen
Meiose
- Meiose: deling waarbij geslachtscellen worden gevormd
DNA
DNA in stukjes
Miniles
- Desoxyribonucleïnezuur
- Uniek per individu
Chromosoom
- één zeer lang molecuul van de stof DNA
- eiwitmoleculen
Eiwitmolecuul
- groot aantal aan elkaar gekoppelde aminozuren
DNA-molecuul
- 2 ketens
- dubbele spiraal
Keten
- duizenden aan elkaar gekoppelde nucleotiden
Nucleotide
- desoxyribose
- fosfaatgroep
- stikstofbase
DNA
Basenparing
- adenine(A)-thymine(T)
- cytosine(C)- guanine(G)
1 kern (2n) + 1 kern (2n)
- nakomelingen zelfde genotype
- natuurlijk en kunstmatig
Meiose I:
(2n) (n)+(n)

(n)+(n) (n)+(n)+(n)+(n)
Meiose II:
meiose I
meiose II
Succes met tentamens en examens!
Full transcript