Meiosis I

Question 1

Prophase I

Answer 1

Chromosomes condense
homologous chromosomes synapse
crossing over takes place,
the nuclear membrane breaks down,
and the mitotic spindle forms.

Question 2

Metaphase I

Answer 2

Homologous pairs of chromosomes line up on the metaphase plate.

Question 3

Anaphase I

Answer 3

The two chromosomes (each with two chromatids) of a homologous pair separate and move toward opposite poles.

Question 4

Telophase I

Answer 4

Chromosomes arrive at the spindle poles.

Question 5

Cytokinesis

Answer 5

The cytoplasm divides to produce two cells, each having half the original number of chromosomes.

Question 6

Interkinesis

Answer 6

In some types of cells, the spindle breaks down, chromosomes relax, and a nuclear membrane re-forms, but no DNA synthesis takes place.