ZOOL 115 Lecture Notes - Lecture 9: Down Syndrome, Typical Male, Spermatocyte
Document Summary
Cell division is a process by which a single cell generates new daughter cells. Growth and reproduction are key characteristics of life. Each cell lives for a certain time and dies. A cell divides to form two new cells. The cell cycle is a continuous process or cycle of growth and division. Binary fission prokaryotic cell division; new cells are genetically identical to the parent cell. Mitosis eukaryotic cell division to produce daughter cells that are identical to the parent cell. Meiosis eukaryotic cell division to produce daughter cells that have half the genetic material of the parent cell. Daughter cells are not genetically identical to parent cell; and can be used for sexual reproduction. For single-celled organisms - binary fission and m . ; each requires only one parent and produces two organisms that are genetically identical to the parent. For multicellular organisms mitosis; new cells cause growth of the organism, replaces lost cells, and repairs injuries.