3.2.2 mitosis

Question 1

what are the 3 parts of the cell cycle in eukaryotes

Answer 1

interphase mitosis and cytokinesis

Question 2

describe the three stages of interphase

Answer 2

G1- growth and signal for cell division
S-synthesis (DNA)
G2-further growth and error checking

Question 3

what is mitosis

Answer 3

nuclear division to produce two identical daughter cells that are genetically identical to parent cells

Question 4

why is mitosis important

Answer 4

growth, repair and reproduction (asexual)

Question 5

what are the four stages of mitosis

Answer 5

-prophase
-metaphase
-anaphase
-telophase

Question 6

describe prophase

Answer 6

chromosomes condense and become shorter and fatter. spindle fibres are formed at opposite poles

Question 7

describe metaphase

Answer 7

chromosomes line along the middle of spindle fibres attached by the centromere

Question 8

describe anaphase

Answer 8

centromere that holds chromosomes together pulls two sister chromatids apart to opposite poles

Question 9

describe telophase

Answer 9

chromatids decondense, nuclear envelope reforms and spindle fibres break down

Question 10

describe cytokinesis

Answer 10

cytoplasm splits to produce two daughter cells