Vocab 12: Cell Division

Question 1

Answer 1

Interphase:

centrioles begin replicating

DNA is replicated

Final preparations for mitosis are completed and centroles finish replicating

Question 2

Answer 2

Early Prophase

1. Chromatin Condenses forming barlike chromosomes
2. Nucleoli disappears
3. Centrosomes separate
4. Microtubules lengthen and begin forming the mitotic spindle
5. Asters extend from the centrosome matrix

Question 3

Answer 3

Late Prophase

1. Nuclear envelope breaks
2. Microtubules attach to kinetechores as the chromasomes centromere.
3. Kinetechore microtubules pull on each chromosome from both poles pulling chromosomes to the center of the cell

Question 4

Answer 4

Metaphase

1. Centrosomes are at the opposite sides of the cell
2. Chromosomes cluster at the midline centromeres precisely aligned at the equator: metaphase plate
3. Enzymes separate the chromatids

Question 5

Answer 5

Anaphase

1. Kinetechore mictrobules pull chromosomes to opposite poles
2. Moving chromosomes look v-shaped

Question 6

Answer 6

Telophase

1. begins when chromosomal movement stops
2. chromosomes begin to uncoil into chromatin
3. nuclear envelope begins to form and nucleoli reappear
4. spindle breaks down

Question 7

Cytokinesis

Answer 7

A contractile ring of actin forms the cleavage furrow and pinches the cell apart.

Begins in late anaphase and goes through telophase.