meiosi I II Flashcards

1
Q

profase I

A

2 cromosomi omologhi si appaiano= 4 cromatidi (TETRADE)
CROSSING OVER

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2
Q

metafase I

A

allineamento piano equatoriale
ogni coppia si attacca fibra del fuso

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3
Q

anafase I

A

i due cromosomi vanno verso i poli

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4
Q

telofase l

A

crazione 2 cell figlie non uguali alla madre con n cromosomi

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5
Q

interfase II

A

cromosmi si despiralizzano IN ENTRAMBE LE CELL FIGLIE

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6
Q

profase II

A

Compaiono nuovamente le fibre del fuso che agganciano i cinetocori dei cromosomi IN ENTRAMBE LE CELL FIGLIE

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7
Q

metafase ll

A

allineamento su piano equatoriale IN ENTRAMBE LE CELL FIGLIE

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8
Q

anafase ll

A

cromatidi si separano e vanno verso poli opposti con pezzetti diversi scambiati

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9
Q

telofase ll

A

si formano due nuclei+ citodieresi= FORMAZIONE 4 CELL APLOIDI CON 4 CROMOSOMI DIVERSI

DA 1 DIPLOIDE= 4 APLOIDI

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