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5.1,5.2,5.3 Vocab
Term | Definition |
---|---|
DNA | molecule that contains information that determines the traits that a living thing inherits |
Chromosomes | a threadlike structure |
Cell Cycle | the life cycle of a eukaryotic cell |
Interphase | the part of the cell cycle during which the cell is not dividing |
Mitosis | the part of the cell cycle during which the nucleus divides |
Cytokinesis | the division of the parent cell's cytoplasm |
Homologous Chromosomes | carry the same genes |
Meiosis | the type of cell division that produces haploid sex cells such as eggs and 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 | when a sperm cell and egg join together |
Binary Fission | the form of asexual reproduction in prokaryotes; the parent organism splits in two producing new cells that are exactly like the parent cell |
Budding | an organism develops tiny buds on its body and grows until it forms a new full-size organism that is genetically identical to the parent |
Spores | a specialized cell that can survive harsh conditions and is produced asexually by one parant |
Vegetative Reproduction | mitosis makes vegetative reproduction possible |
Prophase | the chromosomes in the nucleus of a cell condensed and are held together by a centromere, the membrane around the nucleus breaks down |
Metaphase | chromosomes line up in the middle of the cell centromeres of the chromosomes are the same distance from each side of the cell |
Anaphase | the chromatids separate to opposite sides of the cell and end up with a complete set of chromosomes |
Telophase | the cell now has two identical nuclei that and the chromosomes become less condensed and Cytokinesis begins |
Meiosis I | pairs of homologous chromosomes and sex chromosomes split apart into two new cells |
Meiosis II | results in four haploid sex cells; male organisms these cells develop into sperm cells and in female orgasms these cells become eggs. |