Chapter 6, Sections 2 and 3. How do little elephants grow up to be BIG elephants?
-
Upload
noel-stephens -
Category
Documents
-
view
222 -
download
2
Transcript of Chapter 6, Sections 2 and 3. How do little elephants grow up to be BIG elephants?
Process where nucleus of Cell Divides in two
Will have the same number and kinds of chromosomes as parent cell
Occurs in somatic cells=BODY cells (helps you grow and heal)
Every second in your body – 2 million RBC’s are made through mitosis!
Contains DNA Different organisms contain different
numbers of chromosomes called the DIPLOID NUMBER (2N) Humans=46 Dog=78 Lettuce=18 Goldfish=94
Made of chromatin Composed of DNA
and Protein 2 chromatids (pair)
attached by centromere=SISTER CHROMATIDS
INTERPHASEINTERPHASE
Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Prophase (Prepare): Chromosomes coil up and become visible in the nucleus. Nuclear membrane dissolves.
Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Spindle fibers
Centrioles
Cytoplasm is divided in ½, taking organelles with it.
Cell Membrane encloses all. Animal cell: pinched in ½, called “cleavage
furrow.” Plant cell: Cell plate grows between the
two new cells. Mitosis video Thread of Life
CYTOKINESISOCCURS AFTER MITOSIS
2 DAUGHTER CELLS ARE FORMED .
with the exact same genetic info as the parent cell