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Meiosis flipbook

Date post: 13-Dec-2014
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MEIOSIS FLIPBOOK TRA VIS TRICKER
Transcript
Page 1: Meiosis flipbook

MEIOSIS

FLIP

BOOK

TR

AV

I S T

RI C

KE

R

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DIPLOID CELL (2N)

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Prophase IDyad pairs align to create "TETRADS", non-sister chromatids connect and trade sections at a "CHIASMA", a process called "CROSSING OVER".

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Metaphase I

SPINDLE FIBERS attach to each dyad at the KINETOCHORE. Tension from spindle fibre's aligns the tetrads at the cell equator.

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Anaphase I

Chiasmata break apart and sister chromatids begin migrating toward opposite poles.

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Telophase 1

CLEAVAGE FURROW forms beginning the process of CYTOKINESIS.

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Prophase II

Spindle formation begins and centrosomes begin moving toward poles.

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Metaphase II

Tension from spindle fibre's aligns chromosomes at the metaphase plate.

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Anaphase II

CHROMATIDS separate and begin moving to the poles.

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Telophase II

CLEAVAGE FURROW forms beginning CYTOKINESIS.

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Gamete(1n)

NUCLEAR ENVELOPES form and chromosomes disperse as CHROMATIN. Meiosis has produced 4 DAUGHTER CELLS, each with 1N chromosomes and 1N DNA. Later, in fertilization, male and female 1N gametes will fuse to form a 2N ZYGOTE.

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THE E

ND


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