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11 Cards in this Set
- Front
- Back
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homologous chromosomes
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chromosomes exist in pairs; contain genetically identical material
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sister chromatids
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connected my a common centromere, held together by a protein called cohesin. DNA contained in each pair of chromatids represent the duplication of a single chromosome, they are gentically identical.
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synapse
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when two homologous chromosomes form pairs, they synapse
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bivalent
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two pairs of homologous chromosomes that synapse together early in Meiosis
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tetrad
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consisting of four chromatids; when two pairs of homologous chromosomes synapse
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dyad
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each tetrad yields two dyads.
composed of two sister chromatids joined at a common centromere. |
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monad
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dyad = 2 monads
ultimate product of meiosis II |
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synaptomal complex
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Zygotene Stage
extensive ultrastructural component that forms between homologs during meiosis. |
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spermatogenesis
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occurs in testes in males and is the process of male gamete production: spermatozoa/sperm
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oogenesis
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occurs in the ovaries in females and is the female process of gamete production: ova
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chiasma (pl. chiasmata)
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one or more areas remain in contact where chromatids are intertwined.
thought to represent a point where nonsister chromatids have undergone genetic exchange through the process of crossing over |
