Mitosis Stages

Question 1

Explain the stages of prophase

Answer 1

1. Chrosomes condense becoming visible
2. Centrioles move to opposte ends poles of the cell and mitoitc spindle fibres form
3. Nuclear envelope and nucelous break down= chromosomes lie free in the cytoplasm

Question 2

Explain the stage metaphase

Answer 2

Sister chromatids line up in the cell equator attached to the mitoic spindle by their centromers

Question 3

Explain the stage of anaphase

Answer 3

Spindle fibres contract- centromers divide
Sister chromatids separate into 2 distinct chromosomes and pulled to opposite poles of cell

Spindle fibres break down

Question 4

Explain the process of telopahse

Answer 4

1. Chromosomes decondense becoming invisble again

2. New nuclear envlopes form aound each set of chrosomes = 2 new nuclei each with a 1 copy of each chrosomes

Question 5

What is cytokenesis

Answer 5

1. Cell membrane cleavage furrows forms

2. Contractile divison of cytoplasm