CH 8 - CH.8.HOWCELLSREPRODUCE Objectives: 1. 2. 3. 4. 5....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
CH. 8. HOW CELLS REPRODUCE      Objectives:      1. Understand the factors that cause cells to reproduce. 2. Understand what is meant by cell cycle and explain where mitosis fits into the cell cycle. 3. Be able to describe each phase of mitosis. 4. Explain various mechanisms of cytoplasmic divisions, specifically as it relates to plant and animal cells. 5. Understand some of the implications when the control of cell division is lost.   Key Terms : mitosis somatic cells meiosis germ cells chromosome sister chromatids histones nucleosome centromere kinetochores cell cycle interphase G1, S, G2, M chromosome number diploid number prophase metaphase anaphase telophase bipolar mitotic spindle microtubules centrioles centrosome cytoplasmic division cytokinesis cleavage cleavage furrow cell plate formation growth factors
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
kinases oncogenes neoplasms benign cancers malignant metastasis Lecture Outline :                    Henrietta’s Immortal Cells            A.   Researchers at Johns Hopkins cultured a line of immortal cells in 1951.                   1.   They are referred to as HeLa cells after their source—a woman named Henrietta Lacks.                   2.   Her cells continue to provide for research around the world.            B.   Understanding cell division starts with three questions.                   1.   What kind of information guides inheritance?                   2.   How is the information copied in a parent cell before being distributed into daughter  cells?                   3.   What kinds of mechanisms actually parcel out the information to daughter cells?          8.1.     Overview of Cell Division Mechanisms            A.   Mitosis, Meiosis, and the Prokaryotes                   1.   Before cells are able to reproduce, there must be a division of the nucleus and its DNA.                    2.    Mitosis and meiosis are eukaryotic nuclear division mechanisms that lead to the  distribution of DNA to new nuclei in forthcoming daughter cells.                           a.   Mitosis is used by multicelled organisms for growth, by repeated divisions                                  of somatic cells.                           b.   Meiosis occurs only in reproductive cells that divide to form gametes.                   3.   Prokaryotic cells reproduce asexually by an entirely different mechanism 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/21/2010 for the course BIO 03 taught by Professor Garcia during the Fall '08 term at Los Angeles City College.

Page1 / 4

CH 8 - CH.8.HOWCELLSREPRODUCE Objectives: 1. 2. 3. 4. 5....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online