Mitosis

Question 1

Prophase

Answer 1

Nuclear envelope starts to dissolve
Start to see the chromosomes (pairs of sister chromatids that are attached at the centromere)
Mitotic spindle starts to form (consists of asters and microtubules)

Question 2

Prometaphase

Answer 2

Asters have moved to opposite pole of the cell so that the mitotic spindle spans the whole cell.
The pair of sister chromatids are attaching at the centromere via the kinetochore to the kinetochore microtubules.

Question 3

Metaphase

Answer 3

The pairs of sister chromatids so that they all line up in a single plane across the metaphase plate.

Question 4

Anaphase

Answer 4

Kinetochore microtubules shorten separating the two identical sister chromatids

Question 5

Telophase

Answer 5

Nucleolus and envelope starts to form. Spindle apparatus starts to form.
Cleavage furry starts to form which is where the two cells divide.

Question 6

Cytokinesis

Answer 6

Cytoplasm splits two form 2 independent cells

Question 7

Prophase 1

Answer 7

Homologous chromosomes align and synapse.
Crossing over occurs between non sister chromatids at the chiasmata.
Spindle apparatus starts to form.
Nuclear onvelope dissolves

Question 8

Metaphase 1

Answer 8

Paired homologous chromosome move to metaphase plate and the chiasmata lines up on the plate.

Question 9

Anaphase 1

Answer 9

Recombined homologous chromosomes seperate but sister chromatids remain attached.

Question 10

Telophase 1 and cytokinesis

Answer 10

Cleavage furrow forms and so the diploid cell divides into a haploid cell.