BIO 110 Study Guide - Midterm Guide: Spindle Apparatus, Sister Chromatids, Cleavage Furrow
Document Summary
Exam 3 study guide: cell division allows for the continuity of life. It can be used for reproduction is unicellular organisms or it enables growth, development, and tissue renewal in multicellular eukaryotes: chromosomes are made up of chromatin. Replication is critical because without it, the cell would not be able to go through mitosis and produce two genetically identical daughter cells: replicated chromosomes have two identical dna double helixes and sister chromatids and can be divided. The spindle aids in pulling apart the chromosomes during anaphase: cytokinesis is the separation of the two nuclei formed from telophase. In animal cells, a cleavage furrow forms (string around balloon). In plant cells, a cell plate is formed in between the two nuclei, which establishes a new cell wall for each cell: mitosis is the separation of chromosomes to create two new nuclei in a cell.