APchapter12notes2 - Chapter12notes TheCellCycle...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
    Chapter 12 notes The Cell  Cycle
Background image of page 1

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

View Full DocumentRight Arrow Icon
    The Key Roles of Cell Division Cell division functions in reproduction,  growth, and repair Unicellular organisms (ex. Amoeba) will  divide to reproduce entire organisms Cell division also will allows a multicellular  organism to develop from a single cell
Background image of page 2
    The Key Roles of Cell Division DNA is passed from one generation of  cells to the next without dilution.  -cell duplicates it DNA - moves the 2 copies to opposite ends  of the cell - and then splits into 2 daughter cells
Background image of page 3

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

View Full DocumentRight Arrow Icon
    The Key Roles of Cell Division
Background image of page 4
    Concept 12.1 Cell Division distributes identical sets of  chromosomes to daughter cells A cell’s genetic material is called its  genome - prokaryote = single long DNA strand - eukaryote = number of DNA molecules 
Background image of page 5

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

View Full DocumentRight Arrow Icon
    Concept 12.1 The replication and distribution of DNA is  manageable because it is packaged into  chromosomes - the nuclei in human  somatic cells   contain 46 chromosomes - the nuclei in human  gametes  contains  23 chromosomes
Background image of page 6
    Concept 12.1
Background image of page 7

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

View Full DocumentRight Arrow Icon
    Concept 12.1 The DNA-protein complex is called the  chromatin  and is a long thin fiber. After the chromatin is duplicated, it will  prepare for division.  It will condense  and coil up to form chromosomes .
Background image of page 8
    Concept 12.1 Each duplicated chromosome has 2 sister  chromatids . - each contains identical copies of the  chromosome’s DNA molecule - they are connected together at the  centromere
Background image of page 9

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

View Full DocumentRight Arrow Icon
    Concept 12.1 0.5 µm Chromosomes Chromosome duplication (including DNA synthesis) Chromo- some arm Centromere Sister chromatids DNA molecules Separation of sister chromatids Centromere Sister chromatids
Background image of page 10
    Concept 12.2 The mitotic phase alternates with  interphase in the cell cycle
Background image of page 11

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

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/26/2011 for the course BIO 101 taught by Professor Siller during the Spring '10 term at University of Minnesota Duluth.

Page1 / 41

APchapter12notes2 - Chapter12notes TheCellCycle...

This preview shows document pages 1 - 12. Sign up to view the full document.

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