MITOSIS

Question 1

INTERPHASE

Answer 1

1. G1: INCREASE GROWTH AND SIZE
   S: SYNTHESIS (DNA REPLICATION
   STARTS
   G2: INCREASE GROWTH AND SIZE
   G0: STOP
2. CELL SPENDS MOST TIME RESTING AND REPLACING
3. ORGANELLES IN CYTOPLASM
4. CENTRIOLES IN POSITION (TOP OF NUCLEUS)

Question 2

EARLY PROPHASE

Answer 2

1. ORGANELLES IN CYTOPLASM
2. NUCLEAR ENVELOPE BRAKES APART
3. CENTRIOLES MOVE TOWARDS POLES
4. DNA REPLICATION DONE
5. CHROMATID = SISTER CHROMATID (DNA PAIR)
6. SPINDLE FIBERS PRESENT

Question 3

LATE PROPHASE

Answer 3

1. ORGANELLES IN CYTOPLASM
2. NUCLEAR ENVELOPE GONE
3. CENTRIOLES CLOSER TO POLES
4. SISTER CHROMATIDS BIND TOGETHER W/ CENTROMERE = CHROMOSOME
5. CHROMOSOMES TWIST AROUND THEMSELVES FROM CENTROMERE TO PREVENT CROSS OVER

Question 4

METAPHASE

Answer 4

1. ORGANELLES IN CYTOPLASM
2. SPINDLE FIBERS ATTACH TO CENTROMERES AND PULL CHROMOSOMES TO CENTER OF CELL
3. CENTRIOLES AT POLES

Question 5

ANAPHASE

Answer 5

1. CELL ELONGATES AND INDENTS
2. ORGANELLES MOVE TO POLES
3. CENTRIOLES PULL ON SPINDLE FIBERS ON CENTROMERES UNTIL BROKEN
4. CENTRIOLES PULL HALF CHROMOSOMES TO POLES

Question 6

TELEPHASE

Answer 6

1. CELL INDENTS (CLEAVING) UNTIL SEPERATION (CLEAVAGE)
2. NUCLEAR ENVELOPE RETURNS
3. SPINDLE FIBERS GONE
4. 1/2 DNA AT EACH END OF NEW CELL
5. 1/2 ORGANELLES IN EACH NEW CELL
6. CLEAVAGE = 2 CELLS = DAUGHTER CELLS