unit 2, mitosis

Question 1

Interphase

Answer 1

replicating dna replicating organelles

Question 2

Prophase

Answer 2

Dna condenses to chromosomes
Centrioles move to poles
Spindles form from centrioles
nucleolus dissapears
nuclear envelope breaks
chromosomes free in cytoplasm

Question 3

Metaphase

Answer 3

Spindle fibres attached to centromere
Pull chromatids to centre of sell

Question 4

Anaphase

Answer 4

Centromeres divide into two
Pull individual chromotids apart
Energy comes from mitochondria

Question 5

Telaphase

Answer 5

Chromatids reach respected poles and becoke longer and thinner and even dissapear
Spindle fibres disintegrate
Nuclear envelope and nuceolus forms

Question 6

Cytokenisis

Answer 6

Cytoplasm divides and new fell membrane forms
Two new daughter cells

Question 7

What joins two chromotids at the middle

Answer 7

centromere

Question 8

What are 3 main stages called

Answer 8

Interphase
Mitosis
Cytokenisis

Question 9

Cancer is caused by what?

Answer 9

Damage to genes that regulate mitosis and cell cycle