3.7 Mitosis

Question 1

what is mitosis

Answer 1

cell division that results in each of the daughter cells having an exact copy of he DNA of the parent cell

Question 2

what is interphase

Answer 2

• a period of no division
• replication of DNA

Question 3

what happens during prophase

Answer 3

• chromosomes become visible by shortening and thickening
• centrioles move to the poles of the cells
• spindle fibres develop form the centromeres
• nuclear envelop breaks down
• chromosomes drawn to the equator of the cell

Question 4

what happens during metaphase

Answer 4

• chromosomes made up of two chromatids are joined by centromeres
• arrange at the equator of the cell

Question 5

what happens during anaphase

Answer 5

• centromeres divide into 2
• spindle fibres pull the chromatids apart
• move to opposite poles

Question 6

what happens during telophase and cytokinesis

Answer 6

• chromosomes become thinner and smaller
• spindle fibres disintegrate
• nuclear envelope and nucleolus reform