cell division and cancer

Question 1

interphase

Answer 1

G1: Cell growth and protein synthesis
S: DNA is synthesized and replicated
G2: Growth, protein synthesis, and organelle development

Question 2

Checkpoints

Answer 2

If a cell does not pass the G1/S Checkpoint, the cell cycle stops and the cell will not divide anymore and enters G0

If a cell does not pass the G2/M Checkpoint, the cell cycle stops to repair damaged DNA (in G2 the cell makes sure the DNA duplication is correct)

Question 3

Prophase

Answer 3

Chromatin condenses into chromosomes
Each chromosome is composed of two identical sister chromatids

Question 4

Metaphase

Answer 4

The nuclear membrane disintegrates
The sister chromatids align along the metaphase plate

Question 5

Anaphase

Answer 5

The spindle fibers pull the sister chromatids in opposite directions towards the opposing poles of the cell

Question 6

Telophase

Answer 6

Two nuclear envelopes now form around the separated chromosomes at opposite ends of the original cell
Division of the genetic material is now complete