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Unit 5
5.1, 5.2, 5.3
Term | Definition |
---|---|
DNA | Molecule contains information that determines the traits that a living thing inherits |
Chromosomes | a threadlike structure |
Cell Cycle | life cycle of a eukaryotic cell, parent cell divides into two new cells |
Interphase | part of the cell cycle during which the cell is not dividing |
Mitosis | part of the cell cycle during which the nucleus divides |
Cytokinesis | the division of the parent cell's cytoplasm |
Homologous Chromosome | carry the same genes |
Meiosis | the type of cell division that produces haploid sex cells such as eggs or sperm cells |
Asexual Reproduction | one organism produces one or more new organisms that are identical to itself |
Sexual Reproduction | two parents each contribute a sex cell to the new organism |
Fertilization | sperm cell and an egg join together |
Ways Organisms Reproduce Asexually | Binary Fission Budding Spores Vegetative Reproduction |
Phases of Mitosis | P rophase: chromosomes in the nucleus of a cell condense M etaphase : chromosomes line up in the middle of the cell A anaphase: chromatids separate T elophase: new nuclear membrane forms around each group of chromosomes |
Phases of Meiosis | P rophase I: duplicated homologous chromosomes M etaphase I: chromosomes pairs up in the middle of the cell A naphase I: half of a homologous chromosome T elophase I / Cytokinesis: |