4) The cell cycle

2 phases of the cell cycle

Interphase (85%) and Mitosis (15%)

subphases of interphase?

Gap 1, synthesis, gap 2

Mitosis is the only part of the cell cycle that

is actively dividing

Gap 0 (between G1 and G1/S checkpoint)

cell carrying out its function 

How do cells know when to leave Gap 0 and enter Gap 1?

Growth hormones tell cell to grow

List some reasons why cells need to grow

fixing wounds, replacement of old cells

Gap 1

cells are growing to make a full accurate copy of its DNA 

Gap 1/synthesis checkpoint

Check if the cell has everything to replicate; cell MUST divide after this

Synthesis

DNA replicates (molecules DOUBLE)

Gap 2:

Cell grows everything but DNA to get ready for mitosis  

Gap 2/Mitosis checkpoint

check for proper DNA replication, cell size, and resources

Mitosis

Cell division happens

Spindle-assembly checkpoint happens

during mitosis, metaphase

What does the spindle-assembly checkpoint mean?

Make sure you are splitting cells equally 

Process of meiosis is..

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