
Bazele materiale ale eredității
Presentation
•
Biology
•
12th Grade
•
Practice Problem
•
Easy
Vadim Beschieru
Used 2+ times
FREE Resource
4 Slides • 4 Questions
1
Salvador Luria, genetician
Laureat al Premiului Nobel
înscris într-o substanţă unică, substanţa genelor…”
2
Beschieru Vadim,
profesor de biologie, grad didactic unu
3
Replace this text with your body text.
Duplicate this text as many times as you would like.
Subheader text
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Duplicate this text as many times as you would like.
4
46 molecule de ADN
cu lungimea totală de circa 2 m încap în nucleul celulei umane cu diametrul de ~ 4 microni (0,000004 m)
5
Match
Organizarea moleculară a cromatinei:
20-40%
40%
20%
1-5%
20-40%
40%
20%
1-5%
6
Reorder
Nivelul de organizare a cromozomilor:
Fibră nucleozomală
Solenoidul
Bucle
Cromatidă
7
Match
Împachetarea ADN-ului într-un cromozom presupune
existenţa câtorva nivele de organizare sau condensare, fiecare
fiind responsabil de un anumit grad de micşorare a lungimii ADN-ului.
Asociați nivelul de organizare cu gradul de micșorare.
Fibra nucleozomală
Solenoidul
Bucle
Cromatidă
ADN se scurtează de 6 ori
ADN se scurtează de 40-60 ori
ADN se scurtează de aproximativ 2000 ori
ADN se scurtează de 10000 ori
ADN se scurtează de 6 ori
ADN se scurtează de 40-60 ori
ADN se scurtează de aproximativ 2000 ori
ADN se scurtează de 10000 ori
8
Labeling
Marcați structurile unui cromozom bicromatidic:
Chitetocor
Braț scurt
Cromatide
Centromer
Constricție secundară
Telomer
Constricție primară
Satelit
Braț lung
Salvador Luria, genetician
Laureat al Premiului Nobel
înscris într-o substanţă unică, substanţa genelor…”
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