Cell Cycle and Mitosis

Question 1

What three phases are in Interphase?

Answer 1

G1, S, G2

Question 2

What happens in these 3 phases (Interphase)

Answer 2

Growth, Dna is replicated/duplicated, Growth

Question 3

In interphase what normal functions is the cell doing?

Answer 3

It is doing its normal functions along with preparing to divide by creating a new nucleus (new organelles), replicating its DNA and growing larger

Question 4

What happens in early prophase?

Answer 4

1. The chromatin condenses/coils into chromosomes

2. Nuclear membrane dissolves/dissappears

Question 5

What happens in late prophase?

Answer 5

1. Sister chromatids pair up
2. Centrioles move to the poles
3. Spindle fibres attach to the centromeres
4. Centromere holds sister chromatids together

Question 6

What happens in metaphase?

Answer 6

1. ALL chromosomes line up along the middle/equator under direction of spindle fibre.

Question 7

What happens in anophase?

Answer 7

1. Sister chromatids are separated
2. Spindle fibres do the separating.
   (cytokinesis begins)

Question 8

What happens in early telophase?

Answer 8

1. Chromosomes reach the pole

2. Nuclear membrane reforms around chromosomes

Question 9

What happens in late telophase?

Answer 9

1. Chromosomes uncoil back into chromatin

cytokinesis is completed