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Meiosis > prophase 1 > Flashcards

prophase 1 Flashcards

1
Q

Leptotene

A

chromosomes become visible (1st)

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2
Q

Zygotene

A

Homologs begin to pair, or synapse. This synapse is very exact and precise taking point for point. Synaptonemal complex (SC) begins to form (2nd)

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3
Q

Pachytene

A

completion of synapsis to form bivalents. SC is fully formed and can be seen during pachytene. Crossing over occurs (3rd)

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4
Q

Diplotene

A

separation of homologs is initiated except at point where chiasmata occurs (4th)

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5
Q

Diakinesis

A

chromosomes meeting maximum contraction. The synapse homologs become well spread out in the nucleus. Chiasmata gradually terminalize. Lastly, the nucleolus disappears and the nuclear spindle begins to form (5th)

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Meiosis (3 decks)

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