Mutation Chromosomique Ou Anomalie Chromosomique Flashcards

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1
Q

Nombre anormal de chromosomes

A

Mauvaise séparation des chromosomes homologue lors de la méiose -> Non-disjonction

Zygotes anormaux

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2
Q

Aneuploïdie

A

Cellule ayant un nombre anormal de chromosomes

2n-1 = Monosomique
2n+1 = Trisomique

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3
Q

Polyploïdie

A

Plus de deux jeux complet de chromosomes homologue

Mauvaise séparation de tous les chromosomes homologue lors de la méiose ou de la mitose

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4
Q

Cas d’aneuploïdie

Autosomes

A

Affecte la survie
Rare
Trisomie 21

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5
Q

Cas d’aneuploïdie sur les chromosomes sexuel

A

Affecte moins la survie

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6
Q

Syndrome de Turner

A

23 em paire de chromosome avec XO

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7
Q

Super femme

A

23 em paire de chromosomes avec XXX

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8
Q

Syndrome de Klinefelter

A

23 em paire de chromosome = XXY

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9
Q

Non-disjonction mâle

A

23 em paire de chromosomes XYY

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10
Q

Type de Modification de la structure des chromosomes

A

Délétion
Duplication
Inversion
Translocation

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