Meiosis Flashcards
1
Q
What is meiosis
A
One diploid cell divided to produce haploid cells (gametes)
2
Q
Stages of meiosis
A
Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II
3
Q
Prophase I
A
- Chromatin forms chromosomes
- Synapsis and crossing over
4
Q
Metaphase I
A
- Spindle fibres attach to chromosomes
- Homologous pairs line up in the middle
5
Q
Anaphase I
A
Homologous chromosomes separate and move to opposite poles
6
Q
Telophase I
A
Nuclei start to reform, cytokinesis occurs, centrioles duplicate
7
Q
Prophase II
A
- Chromosomes recondense
- nuclear membrane dissolves and spindle fibres form
8
Q
Metaphase II
A
Chromosomes line up along Equatorial plate
9
Q
Anaphase II
A
Sister chromatids separate and move to opposite poles
10
Q
Telophase II
A
- Spindle fibres disappear
- Chromosomes uncoil
- 4 haploid nuclei form in cell
