mitosis

Question 1

mitosis definition

Answer 1

produces cells which the same number of chromosomes as mother cell

Question 2

what type of cell splitting is mitosis

Answer 2

diploid

Question 3

how does DNA exist in chromosome

Answer 3

one strand in the form of a double helix which runs through the whole chromosome

Question 4

can you see chromosome in the cell

Answer 4

no

but can see chromatid if stained

Question 5

how does chromatid look like

Answer 5

long thin strand

Question 6

what does chromosomes include

Answer 6

two chromatid joined together in specialised part called the centromere

Question 7

where does chromatid join together

Answer 7

centromere

Question 8

how does cromatid look like (diagram)

Answer 8

loose squiggly line

Question 9

how does condensed chromatid look like (diagram)

Answer 9

loads of circles in a line (very very windy curls)

Question 10

how does sister cromatid look like (diagram)

Answer 10

2 condensed chromatid joined in the middle at the centromere

Question 11

what is a complete set of chromosome icon

Answer 11

n

Question 12

what does homologus mean

Answer 12

pair of chromosomes in a cell that are similar but has different version eg blonde, brunette

Question 13

how many chromosomes does a human have

Answer 13

23 pairs of homologous

Question 14

what is the name for a complete set of chromosomes

Answer 14

ploidy level

Question 15

what is the name for things which have more than 2 complete sets of chromosomes

Answer 15

polyploid

Question 16

shape change before mitosis in animal cells

Answer 16

becomes rounded

Question 17

shape change before mitosis in plant cells

Answer 17

no shape change

Question 18

mitosis - animal cells - centrioles?

Answer 18

yes

Question 19

mitosis - plant cells - centrioles?

Answer 19

no

Question 20

cytokenisis shape in animal cells

Answer 20

cleavage furrow

Question 21

cytokenisis shape in plant cells

Answer 21

cell plate

Question 22

where does the cytokinesis site come from in animal cells?

Answer 22

cleavage furrow developes from the outside inwards

Question 23

where does the cytokinesis site come from in plant cells?

Answer 23

cell plate develops from the centre outwards

Question 24

spindle in mitosis in animal cells

Answer 24

degenerates at telophase

Question 25

spindle in mitosis in plant cells

Answer 25

remains throughout new cell wall formation

Question 26

where does mitosis happen in animal cells

Answer 26

bone marrow epithelia hair foliccles nail beds

Question 27

where does mitosis happen in plant cells

Answer 27

in meristems

Question 28

what is mitosis used for in the cell

Answer 28

asexual reproduction repair growth

Question 29

what is interphase

Answer 29

genetic material not condensed into chromosomes DNA duplicates Organelles duplicate Cell growth

Question 30

what happens in early prophase

Answer 30

chromosomes are visible centrioles migrate to the opposite poles of the cell spindle begins to form

Question 31

what happens in late prophase

Answer 31

nuclear envelope breaks down chromosomes condense spindle formed

Question 32

what happens in metaphase

Answer 32

chromsomes line up at the middle of the cell spindle attaches to the centromere of the chromosome

Question 33

what happpens in anaphase

Answer 33

spindle fibres begin to shorten pulling the chromosomes apart at the centromere splitting the chromatids apart chromatids move to oppoite end

Question 34

what happens in telophase

Answer 34

chromosomes reached poles of the cells they unravel and extend spindle breaks down, centrioles duplictes, nucleuolus reapppears

Question 35

what happens in cytokinesis

Answer 35

cleavage forms in cytoplasm chromosomes begin o unwind to form chromatid nuclear envelope begins to reform

Question 36

what are all the phases of mitosis

Answer 36

interphase prophase metaphase anaphase telophase cytokenisis