2.2 Cell Division

Question 1

prophase

Answer 1

nuclear envelope disappears
chromosomes condense and become visible

Question 2

telophase

Answer 2

nuclear envelope reforms
cell splits
chromosomes become invisible

Question 3

metaphase

Answer 3

chromosomes align in middle of cell attatched to spindle fibres by their centromere

Question 4

anaphase

Answer 4

spindle fibres pull apart sister chromatids to oposite poles

Question 5

describe the appearance and behaviour of chromosomes during mitosis

Answer 5

chromosomes condense and become visible

appear as 2 sister chromatids joined at centromere

chromosomes line up at centre

attached to spindle fibres

centromere splits

chromosomes pulled to opposite poles