Science

Question 1

What are the 3 stages of the cell cycle?

Answer 1

Interphase, mitosis and cytokinesis

Question 2

what are the four phases of mitosis?

Answer 2

prophase, metaphase, anaphase and telephase

Question 3

what happens in interphase?

Answer 3

• grows to mature size
• DNA is copied
• new organelles form
  -prepares to divide

Question 4

what happens in prophase?

Answer 4

-chromatin condenses to form chromosomes
-spindle fibers form
-nuclear membrane breaks down

Question 5

what happens in metaphase?

Answer 5

-chromosomes line up in the middle
-spindle fibers attach to the centromere

Question 6

what happens in anaphase?

Answer 6

-centromeres split
-chromatids separate and are pulled apart to opposite ends of cell

Question 7

what happens in telophase?

Answer 7

-new nuclear membrane forms around each set of chromosomes
-chromosomes unwind into chromatin

Question 8

what happens in cytokinesis?

Answer 8

-cell membrane pinches in the middle of the cell
-two cells are formed with identical chromosomes

Question 9

what is mitosis

Answer 9

stage when cell’s nucleus divides into two new nuclei