Term
| When does meiosis occur in animals? |
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Definition
| Prior to production of eggs and sperm. |
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Term
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Definition
| Tetrads form by the synapsis of homologous chromosomes. Crossing over occurs. |
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Term
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Definition
| Homologous pairs align at the metaphase plate. |
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Term
| Meiosis: Anaphase I and Telophase I |
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Definition
| Homologous chromosomes separate; two haploid cells result. |
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Term
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Definition
| Sister chromatids separate..four haploid daughter cells result. |
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Term
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Definition
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Term
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Definition
| Multiple fates are possible. |
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Term
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Definition
| One fate possible, not yet structured. |
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Term
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Definition
| Recognizably structured for a single cell fate. |
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Term
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Definition
| Spermatogonium (2n) -> Mitosis and Initial Differentiation -> Primary spermatocyte (2n) -> Meiosis I -> Secondary spermatocyte (1n) -> Meiosis II -> Spermatids (1n) -> Mature sperm cells (1n). |
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Term
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Definition
| Oogonium (2n) -> Mitosis and Initial Differentiation -> Primary oocyte (2n) -> Meiosis I -> Secondary oocyte (1n) -> Meiosis II -> Ootid (1n) -> Mature egg cell (ovum, 1n) |
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Term
| Ovarian Production of Mature Oocytes |
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Definition
1) Formation of primary oocytes within follicles.
2) Follicle growth.
3) Maturation of follicle.
4) Ovulation.
5) Secondary oocyte to oviduct.
6) Degeneration of corpus luteum. |
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