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1

what is the order of mitosis?

end of interphase

prophase

prometaphase

metaphase

anaphase

telophase

(cytokinesis)

2

what is the difference between having cytokinesis in mitosis and not?

interphase to telophase is nuclear division (Mitosis)

interphase to cytokinesis is cell division

3

what are two centrioles called?

one centomere (aster)

4

what happens during the end of interphase?

DNA is already dulpicated

chromosomes are decondesed (unravelled)

5

what happens during prophase?

chromosomes condense and become visible

centromes seperate and begin to form spindle

- centrioles make spindle fibres

6

what happens during prometaphase?

nuclear membrane breaks down

chromosomes attach to spindle fibres

7

what happens during metaphase?

chromosomes line up at the equator of the spindle

8

what happens during anaphase?

centromeres split and chromatids are pulled to the poles of the cell

9

what happens during telophase?

nucleae membranes reform 

a furrow starts to divide the cytoplasm

10

what happens during cytokinesis

follows mitosis

chromosomes decondense (unravel)

nuclear membranes full formed

division of cytoplasm is complete

two genetically identical daughter cells made

11

label this end of interphase diagram

12

label this prophase diagram

13

label this prometaphase diagram

14

label this metaphase

15

label this anaphase diagram

16

label this telophase diagram

17

label this cytokinesis diagram

18

what is the point of mitosis?

make new cells to replace dead/damaged cells (i.e. repair)

to make new cells grow

19

where in the body does mitosis happen and which cells are involved?

mitosis occurs in all tissues of the body

some aread have a high rate of mitosis - skin, blood (red blood cells live for about 3 months), intestine cells (cells lining villi)

some areas have a very low rate of mitosis - neurones

20

complete this diagram to show the chromosomes in each daughter cell

what is the diploid number of the parent cell?

diploid number of parent cell = 4

21

how does the increase in temperature affect thetime taken for cell division to occur?

the time taken decrease

22

starting with one cell at 250, how many cells would there be after:

2 hours

8 hours

2 hours = 2

8 hours = 16

23

how many sets of chromosomes does a diploid have?

2

24

how many sets of chromosomes does a haploid have?

1

25

what are haploids?

egg or sperm

26

why is meisos needed when we make gametes?

making gametes (haploid - 23 chromosomes) from diploid cells (46 chromosomes)

27

complete this diagram of how to make gametes

28

what is the order of meisos?

interphase 1

prophase 1 and prometaphase 1

metaphase 1

anaphase 1

telophase and cytokinesis 1

prophase 2 and prometaphase 2

metaphase 2

anaphase 2

telophase and cytokinesis 2

 

 

29

what happens during interphase 1?

chromosomes duplicate (interphase)

30

what happens during prophase 1 and prometaphase 1?

prophase 1:

 chromosomes condense and become visible

chromosomes pair up (in homologous pairs)

crossing-over of DNA occurs

prometaphase 1:

nuclear membrane breaks down

spindle beings to form