Meiosis Flashcards

Front 1

Meiosis 1

Back 1

Homologous chromosomes are separated into two daughter cells

Front 2

Prophase 1

Back 2

Chromosomes form and each chromosome pairs with its homologous chromosome; called a tetrad – four chromatids
In a tetrad, homologous chromosomes can exchange portions of their chromatids; called crossing-over

Front 3

Metaphase 1

Back 3

Tetrads line up in the middle, equatorial plane, of the cell

Front 4

Anaphase 1

Back 4

Homologous chromosomes separate and move away from each other to opposite poles of the cell

Front 5

Telophase and Cytokinesis 1

Back 5

Nuclear envelope forms
Cytokinesis occurs resulting in two daughter cells
Daughter cells are NOT identical due to crossing-over in prophase I

Front 6

Meiosis 2

Back 6

Sister “recombinant” chromatids are separated into four gamete cells
Follows stages similar to Mitosis

Front 7

Prophase 2

Back 7

Chromosomes form
Nuclear envelope disappears

Front 8

Metaphase 2

Back 8

Chromosomes line up in the middle of the cell at the equatorial plate

Front 9

Anaphase 2

Back 9

Sister chromatids separate and move away from each other to opposite poles of the cell

Front 10

Telophase and Cytokinesis 2

Back 10

Nuclear envelope forms
Cytokinesis occurs resulting in four genetically different gametes