1. CELL GROWTH AND DIVISION
Chapter 4-1

2. The Cell Cycle

3. MITOSIS
THE PROCESS IN WHICH THE NUCLEUS DIVIDES TO FORM TWO IDENTICAL NUCLEI.

4. I - P M A T

5. INTERPHASE G1 – Cell Growth S – DNA Duplication (Synthesis)

6. PROPHASE Chromosomes become visible Nuclear membrane disappears
Centrioles move to the poles
Spindle fibers form

8. METAPHASE Double stranded chromosomes line up on the midline
Each centromere attaches to a spindle fiber.

10. ANAPHASE Centromeres divide Chromosomes separate
Separate chromosomes move to the poles

12. TELOPHASE Centrioles and spindle fibers disappear
Chromosomes become chromatin
Nuclear membrane forms

14. CYTOKINESIS PLANT CELL MITOSIS
Cytoplasm divides to produce two new cells.
PLANT CELL MITOSIS
Cell plate forms between the two nuclei
New cell walls form along the cell plate.
Plant cells do not have centrioles but do have spindle fibers.

15. RESULTS OF MITOSIS Mitosis is the division of the nuclei
Mitosis produces two new nuclei that have the same number of chromosomes as the original cell. - DIPLOID
MITOSIS QUIZ

16. MEIOSIS Meiosis is the production of sperm and egg.
Meiosis produces four HAPLOID sex cells.
7 min.