Algemeen Flashcards

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1
Q

Hoeveel chromosomen bevat het genoom?

A

22 paar autosomaal
1 paar geslachts

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2
Q

Welke soorten DNA-fingerprinting zijn er?

A

STR, VNTR, RFLP

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3
Q

Verschil locus en allel?

A

Locus = plaats - oogkleur
Allel = variant - bruin, blauw

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4
Q

Waar zit de variatie in het genoom?

A

junk-DNA en intronen

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5
Q

Wat is VNTR?

A

Variable Number Tandem Repeat

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6
Q

Hoe groot zijn stukjes VNTR?

A

10-100bp
5-50 repeats

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7
Q

Wat is RFLP?

A

Restriction Fragment Length Polymorphism

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8
Q

Waar wordt naar gekeken bij RFLP’s?

A

SNP’s, verschil in één basepaar.

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9
Q

Wat is STR?

A

Short Tandem Repeat

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10
Q

Hoe groot zijn STRs?

A

2-13bp
5-30 repeats

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11
Q

Hoe werkt RFLP? (3)

A
  • DNA wordt in stukjes geknipt door restrictieenzymen
  • er ontstaan DNA fragmenten van verschillende lengtes.
  • per individu ontstaan verschillende fragmentlengtes
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12
Q

Wat is het nadeel van RFLP? (3)

A
  1. lang proces
  2. veel DNA nodig
  3. hoge kwaliteit DNA nodig.
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13
Q

Waarom is RFLP vervangen door STR? (3)

A

STR =
1. Minder gevoelig voor DNA degradatie
2. Sneller
3. Minder DNA nodig

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