cell division - mitosis

Question 1

importance of mitosis ?

Answer 1

increases the number of cells during growth
replaced tissue during repair
allows asexual reproduction to occur

Question 2

what is mitosis ?

Answer 2

the production of 2 genitically identical diploid daughter cells

Question 3

prophase ?

Answer 3

mitotic spindle fibres form
nuclear envelope breaks down
chromosomes condense to become visible
centriles move to opposite poles of the cell
each chromosome consists of 2 sister chromotids joined at the centromere

Question 4

metaphase ?

Answer 4

chromosomes line up at the equator of the cell.
spindle fibres from the centrioles attach to the chromatids at the centromere

Question 5

anaphase ?

Answer 5

spindle fibres pull the chromatids apart and move to opposite parts of the cell
centromere divides

Question 6

telophase ?

Answer 6

chromosomes begin to uncoil and a nuclear membrane begins to form around each set of chromosomes
spindle fibres disintegrate

cytokenesis - speration of the cytoplasm, 2 genetically identical dipoid daughter cells produced