Cell+Division


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Vocabulary** Sex Chromosome- two chromosomes that determine gender. Autosome- all of the other chromosomes that give people characteristics (eye color, hair color, etc.) Diploid cell- full set of chromosomes Haploid cell- reproductive cells (1/2 of the chromosomes) Karyotypes- photomicrograph, shows a person's chromosomes. Cell Cycle(life cycle)- Life span (birth-growth-replication) and Interphase Dividing (G1-S-G2) Mitosis- nucleus divides Cytokinesis-cytoplasm divides Prophase-longest, chromosomes become visible and nuclear membrane disintegrates. Metaphase- Chromosomes line up in middle of the cell Anaphase- chromosomes begin to pull apart Telophase- chromosomes are at opposite ends of cell; nuclear membranes form around both sets (Cytokinesis follows) Meosis- reduction division that produces haploid gametes (sex cell, sperm, egg, pollen) Spermatogenesis- sperm production Oogenesis- production of egg cells