1 Definition Prophase 1 Metaphase 1 Anaphase 1 Telophase 1

Meiosis
Definition
Prophase 1
Metaphase 1
Anaphase 1
Telophase 1
Prophase 2
Metaphase 2
Anaphase 2
Telophase 2
1
Definition:
Meiosis: a form of cell division that halves the
number of chromosomes when forming specialized
reproductive cells such as gametes or spore
Another Important Term:
Independent Assortment- random distribution of homologous
chromosomes during meiosis
2
Meiosis
Prophase I
−
−
−
−
Chromosomes become visible
Nuclear envelope breaks down
Crossing-over occurs
portions of a chromatid on one
homologous chromosome are
broken and exchanged with the
corresponding chromatid portions
of the other homologous
chromosome
Diploid (2n)
3
4
0
5
0
6
7
8
9
10
On the Back of your flip book:
Meiosis In males:
Spermatogenesis- the process by which sperm is produced
Meiosis in Females:
Oogenesis- process by which female gametes (eggs/ovum) are produced
You will need to draw the next diagram. (pg. 148 in your textbook)
11
12