Summary
Samenvatting probleem 1: The birds and the bees
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Dit is een samenvatting van probleem 1 van blok 1.5 Changing man (Ontwikkelingspsychologie).
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Probleem 1DNA genetische informatie
Kopiëren: RNA AAC wordt UUG nieuwe binding aan UUG => streng AAC (=>
kopie)
Mitose Meiose
Gewone cellen Geslachtscellen
Dochtercel identiek aan moedercel Dochtercel anders dan moedercel
23 chromosomenparen 23 chromosomen
Geen uitwisseling DNA Uitwisseling DNA (man & vrouw)
Crossing-over = cellen wisselen deel uit doordat ze verstrengeld raken (niet continu, alleen af
en toe)
Erfelijkheid
Intermediair = meerdere allelen dominant => mengvorm tot uiting
Bijv.: rode bloem en witte bloem kruisen, rood en wit beide dominant = roze bloem
(co-dominantie = witte & rode delen)
Kind = heterozygoot = Aa => ouders = ?
Kan: Aa & Aa, AA & aa, AA & Aa, aa & Aa
Kan niet: AA & AA, aa & aa
Gen heeft vaste plek op chromosoom = locus
Manieren erfelijke overdracht:
1. polygenetisch = bepaald door meerdere genen & omgeving (bijv. haarkleur wordt bepaald
door meerdere genen en de omgeving) => ook binnen familie verschillen
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