16.3 - Meiosis & Nondisjunction Flashcards
1
Q
Meiosis
A
The process that produced haploid gametes from diploid cells.
2
Q
How many phases of Meiosis
A
PMAT x 2
3
Q
Metaphase 1
A
Tetrads line up along the equatorial plane of the cell.
4
Q
Prophase 1
A
The nuclear membrane dissolves. Chromosomes undergo synapsis and attach to spindle fibers. Crossing over occurs.
5
Q
Germ cells
A
Gamete-producing cells
6
Q
Synapsis
A
The aligning of homologous chromosomes is called synapsis.
7
Q
Crossing over
A
Segments of chromosome from mom are switching with chromosome of dad. - Gives genetic variation.
8
Q
Anaphase 1
A
Homologous chromosomes separate and move toward opposite ends of the cell.
9
Q
Telophase 1
A
A nuclear envelope forms around each set of separated chromosomes.
10
Q
Homologous chromosomes
A
Same gene, different alleles.
11
Q
Tetrad
A
12
Q
Diploid
A
13
Q
Haploid
A
14
Q
Meiosis 2
A
