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Genetics > Prophase I > Flashcards

Prophase I Flashcards

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1
Q

Leptonema

A

Partial condensation of chromatin, creating chromomeres

Homology search: maternal homologs search for matching homolog

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2
Q

Zygonema

A

Bivalents: two thicker more condensed homologous chromosomes, partially condensed

Rough pairing

300nm apart

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3
Q

Pachynema

A

Chromosomes become thicker and chromatids become visible

Chromosome tetrad structure

100nm apart (synapsed)

Genetic material is mixed (maternal and paternal)

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4
Q

Diplonema

A

Homolog pair separate slightly

The chiasma is terminated at the end of diplonema

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5
Q

Diakinesis

A

Chiasma continue to terminate at telomeres

Synapse disappears

Nuclear envelope disappears

Spindle attach time kinetochores

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Genetics (9 decks)

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