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10 Cards in this Set
- Front
- Back
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In what phase do homologous chromosomes pair-up and chiasmata form
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Prophase I
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When crossing over occurs
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Pachytene
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When homologs are separate from one another, but remain attached at chiasmata
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Diplotene
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Stage only exist in females where oocytes arrested until ovulation.
Homologs are still attached at chiasmata. |
Dictyotene
(Sub-phase of the diplotene stage of prophase I) |
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Does replication of DNA occur in Meiosis I or Meiosis II
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Meiosis I
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Does crossing-over occur in Meiosis I or II?
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Meiosis I
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The haploid number of chromosomes of an organism, the number of unique chromosomes
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"n"
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The number of copies of the unique DNA content, "how many chromatids"
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"c"
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Meiosis I is complete at ovulation for females.
Meiosis II is arrested in Metaphase until what happens? |
Fertilization
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Oogenesis
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At birth, primary oocyte arrested in Prophase I-->ovulation triggers completion of prophase I and stops at Metaphase II-->fertilization triggers completion of Meiosis II
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